UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                    --------

                                   FORM N-CSR
                                    --------

              CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT
                              INVESTMENT COMPANIES

                  INVESTMENT COMPANY ACT FILE NUMBER 811-21911

               OLD MUTUAL 2100 ABSOLUTE RETURN MASTER FUND, L.L.C.
               (Exact name of registrant as specified in charter)
                                    --------


                          800 Westchester Avenue, S-618
                            Rye Brook, New York 10573
               (Address of principal executive offices) (Zip code)

                          SEI Investments Distributors
                            One Freedom Valley Drive
                                 Oaks, PA 19456
                     (Name and address of agent for service)

       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: 1-888-266-2200

                        DATE OF FISCAL YEAR END: MARCH 31

                    DATE OF REPORTING PERIOD: MARCH 31, 2007



ITEM 1.    REPORTS TO STOCKHOLDERS.






Old Mutual 2100 Absolute Return Master Fund, L.L.C.


Financial Statements

For the period November 1, 2006 (commencement of
operations) to March 31, 2007





               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                                Table of Contents

Financial Statements:

Report of Independent Registered Public Accounting Firm........................1
Schedule of Investments........................................................2
Statement of Assets and Liabilities............................................4
Statement of Operations........................................................5
Statements of Changes in Members' Capital......................................6
Statement of Cash Flows........................................................7
Financial Highlights...........................................................8
Notes to Financial Statements..................................................9
Board of Managers and Officers of the Fund (unaudited)........................22
Investment Management Agreement Approval (unaudited)..........................24

























The Fund files its complete  schedule of portfolio  holdings with the Securities
and Exchange  Commission (the  "Commission") for the first and third quarters of
each  fiscal  year on Form  N-Q.  The  Fund's  Forms  N-Q are  available  on the
Commission's  website at  HTTP://WWW.SEC.GOV,  and may be reviewed and copied at
the  Commission's  Public Reference Room in Washington,  DC.  Information on the
operation   of  the  Public   Reference   Room  may  be   obtained   by  calling
1-800-SEC-0330.

A description of the policies and procedures that the Fund uses to determine how
to vote  proxies  relating  to  portfolio  securities,  as  well as  information
relating to how the Fund voted proxies relating to portfolio  securities  during
the most recent  12-month period ended June 30, is available (i) without charge,
upon request, by calling toll free (888) 266-2200;  and (ii) on the Commission's
website at HTTP://WWW.SEC.GOV.




[ABA LOGO OMITTED]
ESTABLISHED 1923

Anchin, Block & Anchin LLP
Accountants and Consultants


1375 Broadway
New York, New York 10018
(212) 840-3456
FAX (212) 840-7066


             Report of Independent Registered Public Accounting Firm


To the Board of Managers and Members
Old Mutual 2100 Absolute Return Master Fund, L.L.C.

         We have audited the accompanying statement of assets and liabilities of
Old Mutual 2100 Absolute Return Master Fund, L.L.C. as of March 31, 2007 and the
related  statements of operations,  changes in member's capital,  cash flows and
financial   highlights  for  the  period  November  1,  2006   (commencement  of
operations)  through  March  31,  2007.  These  financial   statements  are  the
responsibility  of the Fund's  management.  Our  responsibility is to express an
opinion on these financial statements based on our audit.

         We conducted  our audit in accordance  with  auditing  standards of the
Public Company  Accounting  Oversight  Board (United  States).  Those  standards
require that we plan and perform the audit to obtain reasonable  assurance about
whether the financial  statements  are free of material  misstatement.  An audit
includes  examining,  on a test  basis,  evidence  supporting  the  amounts  and
disclosures in the financial statements. Our procedures included confirmation of
investments  owned as of March 31, 2007, by  correspondence  with  custodian and
portfolio funds. An audit also includes assessing the accounting principles used
and significant estimates made by management,  as well as evaluating the overall
financial  statement  presentation.   We  believe  that  our  audit  provides  a
reasonable basis for our opinion.

         In our opinion,  the  financial  statements  referred to above  present
fairly,  in all material  respects,  the  financial  position of Old Mutual 2100
Absolute Return Master Fund, L.L.C. as of March 31, 2007, and the results of its
operations, the changes in member's capital, cash flows and financial highlights
for the period November 1, 2006  (commencement of operations)  through March 31,
2007 in conformity with accounting  principles  generally accepted in the United
States of America.

                                                  /s/ Anchin, Block & Anchin LLP

New York, N. Y.
May 23, 2007

                                                                               1




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                             Schedule of Investments
                                 March 31, 2007

Investment Strategies as a Percentage of Total Investments
[Pie Chart Omitted]
Plot points are as follows:

Capital Structure Arbitrage - 12.0%
Commodity Trading Advisor - 9.3%
Equity Long Bias - 16.7%
Equity Market Neutral - 16.9%
Equity Variable Bias - 18.1%
Event Driven - 17.6%
Relative Value - 9.4%


                                                                             %* OF
                                                                            MEMBERS'
Portfolio Fund                                 COST             VALUE        CAPITAL  LIQUIDITY
- -------------------------------------------------------------------------------------------------
                                                                          
CAPITAL STRUCTURE ARBITRAGE:
BAM Opportunity Fund, L.P.                   $   339,000    $   346,542        3.15%  Quarterly
Linden Investors, L.P.                           479,000        505,617        4.59%  Quarterly
Tenor Opportunity Fund, L.P.                     415,000        438,752        3.98%  Quarterly
                                             ---------------------------------------
    TOTAL CAPITAL STRUCTURE ARBITRAGE          1,233,000      1,290,911       11.72%
                                             ---------------------------------------

COMMODITY TRADING ADVISOR:
Tudor Tensor Fund, L.P.                        1,000,000      1,003,212        9.11%   Monthly
                                             ---------------------------------------
    TOTAL COMMODITY TRADING ADVISOR            1,000,000      1,003,212        9.11%
                                             ---------------------------------------
EQUITY LONG BIAS:
JANA Partners Qualified, L.P.                    448,000        500,627        4.54%  Quarterly
Quadrangle Equity Investors, L.P.                415,000        456,268        4.14%  Quarterly
Renaissance Institutional Equities Fund, LLC     800,000        832,559        7.56%   Monthly
                                             ---------------------------------------
    TOTAL EQUITY LONG BIAS                     1,663,000      1,789,454       16.24%
                                             ---------------------------------------


                                                                               2




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                       Schedule of Investments (concluded)
                                 March 31, 2007


                                                                            %* OF
                                                                            MEMBERS'
Portfolio Fund                                       COST        VALUE      CAPITAL  LIQUIDITY
- -------------------------------------------------------------------------------------------------
                                                                        
Equity Market Neutral:
ACI U.S. Market Neutral Fund, L.P.               $   269,000  $   283,346     2.57%   Monthly
The Black Mesa Fund                                  415,000      462,998     4.20%   Monthly
Two Sigma Spectrum U.S. Fund, L.P.                 1,000,000    1,066,379     9.68%  Quarterly
                                                 ----------------------------------
    TOTAL EQUITY MARKET NEUTRAL                    1,684,000    1,812,723    16.45%
                                                 ----------------------------------

EQUITY VARIABLE BIAS:
7x7 Institutional Partners, L.P.                     458,000      476,019     4.32%   Monthly
Cedar Hill Capital Partners Onshore, L.P.            449,000      475,694     4.32%  Quarterly
Enso Global Equities Partnership, L.P.               468,000      508,326     4.62%  Quarterly
Rosen Real Estate Securities Value Fund II, L.P.     468,000      480,504     4.36%  Quarterly
                                                 ----------------------------------
    TOTAL EQUITY VARIABLE BIAS                     1,843,000    1,940,543    17.62%
                                                 ----------------------------------

EVENT DRIVEN:
Claren Road Credit Partners, L.P.                    458,000      481,478     4.37%  Quarterly
GoldenTree Partners, L.P.                            458,000      494,686     4.49%  Quarterly
Greywolf Capital Partner II, L.P.                    458,000      489,336     4.44%  Annually
Jefferies Buckeye Fund, LLC                          415,000      429,771     3.90%  Quarterly
                                                 ----------------------------------
    TOTAL EVENT DRIVEN                             1,789,000    1,895,271    17.20%
                                                 ----------------------------------

RELATIVE VALUE:
Ellington Mortgage Partners, L.P.                  1,000,000    1,014,498     9.21%  Quarterly
                                                 ----------------------------------
    TOTAL RELATIVE VALUE                           1,000,000    1,014,498     9.21%
                                                 ----------------------------------

    TOTAL PORTFOLIO FUNDS                        $10,212,000  $10,746,612    97.55%
                                                 ==================================

*Percentages are based on Members' Capital at end of period of $11,016,521.

The  aggregate  cost  of  investments  for tax  purposes  was  $10,212,000.  Net
unrealized  appreciation on investments for tax purposes was $534,612 consisting
of  $534,612  of gross  unrealized  appreciation  and  ($0) of gross  unrealized
depreciation.

The investments in Portfolio Funds shown above,  representing 97.55% of Members'
Capital, have been fair valued as described in Note 2.B.


    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.

                                                                               3




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                       Statement of Assets and Liabilities

                                 March 31, 2007



                                                                    
ASSETS
Investments in Portfolio Funds, at fair value (cost $10,212,000)       $ 10,746,612
Cash                                                                        394,860
Receivable for Investment sold                                              244,082
Deferred offering costs                                                       8,590
Interest receivable                                                           1,970
                                                                       -------------
          TOTAL ASSETS                                                   11,396,114
                                                                       -------------

LIABILITIES
Payable to Advisor                                                          109,625
Due to OldMutual 2100 Funds
          Emerging Managers Master Fund, L.L.C.                              99,000
Professional fees payable                                                    89,409
Redemption payable                                                           50,341
Administration fees payable                                                   2,083
Board of Managers' fees payable                                               1,042
Other accrued expenses                                                       28,093
                                                                       -------------
          TOTAL LIABILITIES                                                 379,593
                                                                       -------------

          NET ASSETS                                                   $ 11,016,521
                                                                       =============

MEMBERS' CAPITAL
Net capital                                                            $ 10,598,002
Accumulated net investment loss                                            (111,175)
Accumulated net realized loss on Portfolio Funds                             (4,918)
Net unrealized appreciation on investments in Portfolio Funds               534,612
                                                                       -------------
          MEMBERS' CAPITAL                                             $ 11,016,521
                                                                       =============








    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.

                                                                               4





               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                             Statement of Operations

               For the period from November 1, 2006 (commencement
                        of operations) to March 31, 2007


INVESTMENT INCOME:
     Interest                                               $  18,052
                                                            ----------

EXPENSES:
     Professional fees                                         89,409
     Offering costs                                             6,135
     Board of Managers' fees                                    3,125
     Administration fee                                         2,466
     Custody fee                                                  625
     Other expenses                                            27,467
                                                            ----------
           Total expenses                                     129,227
                                                            ----------
NET INVESTMENT LOSS                                          (111,175)
                                                            ----------


NET REALIZED AND UNREALIZED GAIN/(LOSS)
   ON INVESTMENTS IN PORTFOLIO FUNDS
Net Realized Loss on
     Investments in Portfolio Funds                            (4,918)
Net Change in Unrealized Appreciation on
     Investments in Portfolio Funds                           534,612
                                                            ----------

NET REALIZED AND UNREALIZED GAIN
     ON INVESTMENTS IN PORTFOLIO FUNDS                        529,694
                                                            ----------

NET INCREASE IN MEMBERS' CAPITAL DERIVED
     FROM INVESTMENT ACTIVITIES                             $ 418,519
                                                            ==========








    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.

                                                                               5




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Statements of Changes in Members' Capital

                                                             November 1, 2006*
                                                                    to
                                                              March 31, 2007
                                                             -----------------
FROM INVESTMENT ACTIVITIES:
       Net investment loss**                                   $ (111,175)
       Net realized loss on investments
             in Portfolio Funds                                    (4,918)
       Net change in unrealized appreciation on
             investments in Portfolio Funds                       534,612
                                                              ------------

                 Net increase in Members' Capital
                   derived from investment activities             418,519
                                                              ------------

MEMBERS' CAPITAL TRANSACTIONS :
       Proceeds from sales of Interests                        10,696,310
       Redemptions of Interests                                  (103,408)
                                                              ------------
                                                               10,592,902
                                                              ------------

NET INCREASE IN MEMBERS' CAPITAL:                              11,011,421
Members' Capital at Beginning of Period                             5,100
                                                              ------------
Members' Capital at End of Period                             $11,016,521
                                                              ============



ACCUMULATED NET INVESTMENT LOSS                               $  (111,175)
                                                              ============

 * Commencement of operations
** Investment income less net expenses.










    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.

                                                                               6




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                             Statement of Cash Flows

               For the period from November 1, 2006 (commencement
                        of operations) to March 31, 2007


CASH FLOWS FROM OPERATING ACTIVITIES
                                                                               
Net increase in Members' Capital derived from investment activities               $    418,519
Adjustments to reconcile net increase in Members' Capital derived
       from investment activities to net cash used in operating activities:
             Purchases of Portfolio Funds                                          (10,461,000)
             Proceeds from sales of Portfolio Funds                                    244,082
             Net realized loss on
                   investments in Portfolio Funds                                        4,918
             Net change in unrealized appreciation
                   on investments in Portfolio Funds                                  (534,612)
             Increase in receivable for investments sold                              (244,082)
             Decrease in deferred offering costs                                         6,135
             Increase in interest receivable                                            (1,970)
             Increase in due to Emerging Managers Master Fund, L.L.C.                   99,000
             Increase in professional fees payable                                      89,409
             Increase in administration fee payable                                      2,083
             Increase in Board of Managers' fees payable                                 1,042
             Increase in other accrued expenses                                         28,093
                                                                                  -------------
Net cash used in operating activities                                              (10,348,383)
                                                                                  -------------


CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from Sale of Interests                                                     10,696,310
Redemptions of Interests                                                               (53,067)
                                                                                  -------------
Net cash provided by financing activities                                           10,643,243
                                                                                  -------------

NET INCREASE IN CASH                                                                   294,860
Cash, beginning of period                                                              100,000
                                                                                  -------------
CASH, END OF PERIOD                                                               $    394,860
                                                                                  =============

SUPPLEMENTAL DISCLOSURE OF NON-CASH FINANCING ACTIVITIES
Redemptions payable                                                               $     50,341
                                                                                  =============



    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.

                                                                               7




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                              Financial Highlights


                                                   November 1, 2006*
                                                           to
                                                    March 31, 2007
                                                 ---------------------

        Total Return (1)                                   3.95 %

        Net assets, end of period (000's)              $ 11,017

        Ratio to average net assets:

              Expenses (2)                                 2.93 %  (3)

              Net investment loss                         (2.52)%  (3)

        Portfolio turnover rate                            2.52 %  (4)

       * Commencement of operations
       (1) Total return is for the period indicated and has not been annualized.
       (2) Expenses of Portfolio Funds are not included in the expense ratio.
       (3) Annualized.
       (4) Not annualized.

Note: The expense ratios,  the net investment  loss ratio,  and the total return
percentages are calculated for the Members taken as a whole.  The computation of
such ratios and return  based on the amount of expenses  charged to any specific
Member may vary from the overall ratios presented in the financial statements as
a result of the timing of capital transactions.










    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.

                                                                               8




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                          Notes to Financial Statements

                                 March 31, 2007

1. ORGANIZATION

Old Mutual 2100 Absolute Return Master Fund,  L.L.C.  (the "Fund") is a Delaware
limited liability company that is registered under the Investment Company Act of
1940, as amended (the "1940 Act") as a non-diversified,  closed-end,  management
investment company,  which was formed on April 25, 2006 and commenced operations
on November 1, 2006. The Fund is a master fund in a master/feeder structure into
which its feeder  funds,  Old Mutual 2100  Absolute  Return  Fund,  L.L.C.  (the
"Feeder Fund") and Old Mutual 2100 Absolute Return  Institutional  Fund,  L.L.C.
(the "Institutional  Feeder Fund")  (collectively,  the "Feeders" or "Members"),
invest  substantially  all of their  assets.  As of March 31,  2007,  the Feeder
Fund's  investment  in the Fund  represents  90.6% of Members'  Capital,  and an
affiliate  of the Adviser (as defined in Note 3) had an  investment  in the Fund
which  represents  9.4%  of  Members'  Capital.   As  of  March  31,  2007,  the
Institutional Feeder Fund had not yet commenced operations.

The Fund employs a "fund of funds"  investment  program  that  enables  eligible
investors,  through one investment, to participate in the investment programs of
a  professionally  selected group of asset managers without being subject to the
high minimum investment  requirements that many asset managers typically impose.
The Fund is similar to a private  investment fund in that it is actively managed
and  interests  in the Feeders  ("Interests")  are sold solely to high net worth
individual  and  institutional  investors,  but differs  from a typical  private
investment  fund in that it has  registered as an  investment  company under the
1940 Act.

The Fund's investment  objective is to seek to generate attractive returns while
attempting  to reduce  volatility.  The Fund  invests  its assets  primarily  in
private investment funds, joint ventures, investment companies and other similar
investment  vehicles  ("Portfolio  Funds") that are managed by a select group of
portfolio managers ("Portfolio  Managers") that invest in a variety of financial
markets and utilize a broad range of alternative investment strategies.

2. SIGNIFICANT ACCOUNTING POLICIES

The Fund's  financial  statements  are prepared in  conformity  with  accounting
principles  generally accepted in the United States of America. The following is
a summary of the significant accounting policies followed by the Fund:

A. Use of Estimates

The preparation of financial statements in conformity with accounting principles
generally  accepted in the United States of America requires the Adviser to make
estimates  and  assumptions  that affect the amounts  reported in the  financial
statements  and  accompanying  notes.  Actual  results  could  differ from these
estimates.

                                                                               9




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Notes to Financial Statements (continued)

2. SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

B. Portfolio Valuation and Investment Transactions

The net asset value of the Fund is  determined  by or at the  discretion  of the
Adviser as of the close of  business  as of the end of each month in  accordance
with the valuation principles as may be determined from time to time pursuant to
policies  established  by the Fund's Board of Managers  (the  "Board").  The net
asset  value  of the Fund is based  primarily  on the fair  value of each of its
interests in Portfolio  Funds.  Ordinarily,  these values are  determined by the
Portfolio  Managers of the  Portfolio  Funds in  accordance  with the  Portfolio
Funds'  valuation  policies  and as reported  by the  Portfolio  Managers.  As a
general  matter,  the fair  value of the Fund's  interest  in a  Portfolio  Fund
represents the amount that the Fund could reasonably  expect to receive from the
Portfolio  Fund if the Fund's  interest  were redeemed at the time of valuation,
based on information  reasonably available at the time the valuation is made and
that the Fund believes to be reliable.

The Fund's  valuation  procedures  require the Adviser to consider  all relevant
information available at the time the Fund values its assets. The Adviser or, in
certain  cases,  the Fund's  Board,  will  consider  such  information,  and may
conclude in certain  circumstances that the information  provided by a Portfolio
Manager does not represent the fair value of the Fund's interests in a Portfolio
Fund.  Following  procedures  adopted by the Board,  in the  absence of specific
transaction activity in interests in a particular Portfolio Fund, the Fund could
consider whether it was appropriate, in light of all relevant circumstances,  to
value such a position at the Portfolio Fund's net asset value as reported at the
time of  valuation,  or  whether  to adjust  such  value to reflect a premium or
discount to net asset value.  Any such decision must be made in good faith,  and
subject to the review and supervision of the Board.

As of December 31, 2006 the financial statements of Ellington Mortgage Partners,
L.P.  included  investments  valued at $1,129,829  (which  represents  the funds
proportionate ownership of 0.1779%) whose fair values have been estimated by the
investment  manager in the absence of readily  determinable  fair values.  Those
estimated  values may differ  significantly  from the value that would have been
used had a ready market for the investments  existed,  and differences  could be
material. Information as of March 31, 2007 was not available.

Realized gains and losses from Portfolio Fund transactions are calculated on the
identified  cost basis.  Investments  are recorded on the effective  date of the
subscription to or redemption from the Portfolio Fund.

Interest  income is recorded on an accrual basis and consists of interest earned
on cash.

C. Income Taxes

Counsel to the Fund  rendered an opinion that the Fund will be  classified  as a
partnership  and not as an association  taxable as a corporation for Federal tax
purposes. Counsel to the Fund also rendered its opinion that, under a "facts and
circumstances"  test,  the  Fund  will  not be  treated  as a  "publicly  traded
partnership"  taxable  as a  corporation.  Accordingly,  the Fund  should not be
subject to Federal income tax, and each Member will be required to report on its
own annual tax return such  Member's  distributive  share of the Fund's  taxable
income or loss.

                                                                              10




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Notes to Financial Statements (continued)

2. SIGNIFICANT ACCOUNTING POLICIES (CONCLUDED)

D. Distribution Policy

The Fund has no present  intention of making periodic  distributions  of its net
investment income or capital gains, if any, to Members. The amount and frequency
of  distributions,  if any,  will be  determined  in the sole  discretion of the
Board.

E. Distributions from Portfolio Funds

Distributions  from Portfolio  Funds will be classified as investment  income or
realized gains in the Statements of Operations, or alternatively,  as a decrease
to the cost of the investments based on the U.S. income tax  characteristics  of
the  distribution  if such  information  is  available.  In cases  where the tax
characteristics  are not  available,  such  distribution  will be  classified as
investment income.

F. Cash

As of March 31,  2007,  cash  consists of an  investment  in a money market fund
affiliated  with the  Administrator  (as defined in Note 3). The  investment  is
carried at cost, which approximates market value.

3. MANAGEMENT FEE, RELATED PARTY TRANSACTIONS AND OTHER

2100  Larch Lane LLC (the  "Adviser"),  a Delaware  limited  liability  company,
serves as the  investment  adviser of the Fund  pursuant to an  agreement  dated
October 13, 2006. The initial term of the agreement  expires on October 13, 2008
and may be continued in effect from year to year  thereafter if its  continuance
is approved  annually.  The Adviser is registered as an investment adviser under
the  Investment  Advisers Act of 1940,  as amended  (the  "Advisers  Act").  LLA
Holdings, LLC, the special member of the Adviser, owns 75% of the Adviser and is
an  indirect  majority-owned  subsidiary  of  Old  Mutual  (US)  Holdings,  Inc.
("OMUSH"),  which is a  wholly-owned  subsidiary  of Old  Mutual  plc,  a London
exchange listed international financial services firm. OMUSH is also a member of
the Fund and contributed  $1,000,000  during the period and has members' capital
of $1,039,387 as of March 31, 2007. The Adviser is responsible  for  developing,
implementing  and  supervising  the  Fund's  investment  program  and  providing
day-to-day management services to the Fund.

Under the  agreement  with the  Adviser,  the Fund  does not pay any  investment
management fee to the Adviser.  However,  under the agreement,  in the event the
Adviser  ceases to serve as the Adviser to each fund that invests  substantially
all of its  assets in the Fund (a  "Feeder"),  the  Master  Fund  would  then be
subject to a fee that is calculated  and payable in  accordance  with the lowest
annual rate that had most recently been charged by the Adviser to a Feeder.

                                                                              11




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Notes to Financial Statements (continued)

3. MANAGEMENT FEE, RELATED PARTY TRANSACTIONS AND OTHER (CONCLUDED)

The Fund and the Feeder Fund have entered into a  Master/Feeder  Agreement dated
October 13,  2006 and the Fund and the  Institutional  Feeder Fund have  entered
into  a  Master/Feeder  Agreement  dated  February  8,  2007.  Pursuant  to  the
agreement, the Fund and the Feeders will each have the same investment objective
and  substantially the same investment  policies.  The Feeders will pursue their
investment  objectives  by investing on an ongoing  basis  substantially  all of
their investable  assets in the Fund in exchange for limited  liability  company
interests  in the Fund.  The  Master/Feeder  Argreements  will  remain in effect
unless terminated by the Fund or the Feeders.

The Fund is managed by the Board of Managers  (the  "Board")  and each member of
the Board who is not an "interested manager" of the Fund, as defined by the 1940
Act (the  "Independent  Managers"),  is entitled to an annual retainer of $2,500
and will be reimbursed by the Fund for travel-related  expenses. The Independent
Managers  of the  Board are  Gerald  Hellerman,  Paul D.  Malek,  and  George W.
Morriss.

Pursuant to an  administrative  services  agreement  dated  October 13, 2006 and
amended   February  8,  2007,  SEI   Investments   Global  Funds  Services  (the
"Administrator"),  provides various administrative  services to the Fund and the
Feeders,  including fund accounting,  investor accounting and taxation services,
maintaining  the  register  of the Fund and  generally  performing  all  actions
related to the issuance and transfer of  Interests;  reviewing  and,  subject to
approval  by the Fund,  accepting  subscriptions  for  Interests  and  accepting
payment  therefore;  performing all acts related to the repurchase of Interests;
and  performing  all other clerical  services  necessary in connection  with the
administration  of the  Fund.  The  initial  term of the  agreement  expires  on
November 1, 2009 and may be continued in effect from year to year  thereafter if
its continuance is approved annually.

In consideration for the services provided by the  Administrator,  the Fund pays
the Administrator a monthly fee calculated and assessed monthly in arrears at an
annualized  rate of 0.01% of the Fund's net assets,  subject to a minimum annual
fee of $5,000.

SEI Private  Trust  Company (the  "Custodian")  serves as the  custodian for the
assets  of the  Fund  pursuant  to an  agreement  dated  October  13,  2006.  In
consideration  for the  services  provided by the  Custodian,  the Fund pays the
Custodian  a monthly  fee at an  annualized  rate of  0.0075%  of the Fund's net
assets,  subject to a minimum annual fee of $1,500. The agreement will remain in
effect unless terminated by the Fund or the Custodian.

4. FUND EXPENSES

The Fund bears its own operating expenses. These operating expenses include, but
are not limited to: all investment-related  expenses (including, but not limited
to, fees paid directly or indirectly to Portfolio  Managers,  investment-related
interest  expenses,  all  costs  and  expenses  directly  related  to  portfolio
transactions  and  positions,  transfer taxes and premiums and taxes withheld on
foreign  dividends);  any  non-investment  related  interest  expense;  fees and
disbursements of any attorneys or accountants

                                                                              12




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Notes to Financial Statements (continued)

4. FUND EXPENSES (CONCLUDED)

engaged on behalf of the Fund;  entity-level  taxes,  audit and tax  preparation
fees  and  expenses;  administrative  expenses  and  fees of the  Fund;  custody
expenses  of the  Fund;  the  costs of an  errors  and  omissions/directors  and
officers  liability  insurance  and a  fidelity  bond  for the  Fund;  fees  and
travel-related  expenses of the Board of the Fund who are not  employees  of the
Adviser or any affiliate of the Adviser;  all costs and charges for equipment or
services used in  communicating  information  regarding the Fund's  transactions
among the  sub-Adviser and any custodian or other agent engaged by the Fund; any
extraordinary  expenses; and such other expenses as may be approved from time to
time by the Board.

The Fund also indirectly  bears fees and expenses of the Portfolio  Funds.  Each
Portfolio Manager  generally  receives a management fee and a performance fee or
allocation  with respect to the assets of Portfolio  Funds that it manages.  The
amount of these fees and allocations  varies among Portfolio  Managers,  but the
management  fees are generally  expected to be between  1.0%-2.0%,  on an annual
basis, of the total assets managed by a Portfolio  Manager,  and the performance
fees or  allocations  are  generally  expected to be between  15%-25% of the net
capital appreciation (if any) in the assets managed by a Portfolio Manager.

5. INITIAL OFFERING COSTS AND ORGANIZATION EXPENSES

The  Fund  incurred  initial  offering  costs  totaling   approximately  $14,725
comprised principally of legal costs pertaining to the preparation of the Fund's
offering   documents.   These  costs  are  being   amortized  over  the  initial
twelve-month period which expires on October 31, 2007.

Costs incurred in connection with the  organization of the Fund were expensed at
April 25, 2006,  the  inception  date.  The Adviser paid the costs in connection
with  the  organization  of  the  Fund  and  agreed  to  absorb  $15,000  of the
organization  costs. The Fund incurred  $109,900 in organization  costs and will
repay the Adviser.

6. BORROWINGS

The  Fund is  authorized  to  borrow  money  for  investment  purposes,  to meet
repurchase requests and for cash management purposes. Borrowings by the Fund are
subject to a 300% asset coverage requirement under the 1940 Act. Portfolio Funds
that  are  not  registered   investment   companies  are  not  subject  to  this
requirement. The Fund had no borrowings during the period ended March 31, 2007.

                                                                              13




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Notes to Financial Statements (continued)

7. CAPITAL ACCOUNTS AND ALLOCATIONS

The Fund maintains a separate  capital account for each Member.  The net profits
or net losses of the Fund (including,  without limitation,  net realized gain or
loss and the net change in unrealized appreciation or depreciation of securities
positions) are credited to or debited against the capital accounts of Members as
of the end of each fiscal period in accordance with their respective  investment
percentages for the period.  Each Member's  investment  percentage is determined
each fiscal  period by  dividing,  as of the  commencement  of the  period,  the
balance  of the  Member's  capital  account  by the sum of the  balances  of the
capital accounts of all Members.

A fiscal  period  begins on the day after the last day of the  preceding  fiscal
period and ends at the close of  business on the first to occur of: (i) the last
day of each  fiscal  year (March  31);  (ii) the last day of each  taxable  year
(December 31); (iii) the day preceding the date as of which any contributions to
the capital of the Fund is made;  (iv) any day as of which the Fund  repurchases
the Interest (or portion thereof) of any Member;  or (v) any day as of which any
amount is credit to or debited from the capital account of any Member other than
an amount to be credited to or debited from the capital  accounts of all Members
in accordance with their respective investment percentages.

8. SUBSCRIPTIONS AND REDEMPTIONS OF INTERESTS

The Board  may admit one or more  Members  generally  at the  beginning  of each
month;  provided,  however,  that the Fund may, in the  discretion of the Board,
admit Members more or less frequently.

No Member or other person holding an Interest or portion  thereof shall have the
right to require the Fund to repurchase  that Interest or portion  thereof.  The
Board,  in its  sole  discretion  and on such  terms  and  conditions  as it may
determine,  may cause  the Fund to  repurchase  Interests  or  portions  thereof
pursuant to written  tenders.  However,  the Fund shall not offer to  repurchase
Interests on more than four occasions during any one fiscal year;  provided that
offers made more than  semi-annually  in any taxable year shall only be accepted
if Members  give at least 65 days' notice of their  acceptance  in any tax year,
unless  it has  consulted  with  counsel  to the Fund and  determined  that more
frequent offers would not cause any adverse tax  consequences to the Fund or the
Members.  In  determining  whether to cause the Fund to repurchase  Interests or
portions thereof pursuant to written  tenders,  the Board shall consider,  among
other things, the recommendation of the Adviser.

9. FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK

In the normal course of business,  the Portfolio Funds in which the Fund invests
trade various financial instruments and enter into various investment activities
with  off-balance  sheet risk.  These  include,  but are not  limited to,  short
selling activities,  writing options contracts,  and swap contracts.  The Fund's
risk of loss in the Portfolio Funds is limited to the value of these investments
reported by the Portfolio Funds.

                                                                              14


               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Notes to Financial Statements (continued)

10. INDEMNIFICATIONS

In the normal course of business,  the Fund enters into contracts that contain a
variety of representations  which provide general  indemnifications.  The Fund's
maximum  exposure  under  these  arrangements  is unknown as this would  involve
future claims that may be against the Fund that have not yet occurred.  However,
based on experience, the Fund expects the risk of loss to be remote.

11. CONCENTRATION OF RISK

The Fund invests  primarily in Portfolio Funds that are not registered under the
1940 Act which  invest in and  actively  trade  securities  and other  financial
instruments  using  different  strategies and investment  techniques,  including
leverage,  which may involve significant risks. These Portfolio Funds may invest
a high percentage of their assets in specific  sectors of the market in order to
achieve a potentially  greater  investment  return.  As a result,  the Portfolio
Funds  may  be  more   susceptible  to  economic,   political,   and  regulatory
developments in a particular sector of the market, positive or negative, and may
experience increased volatility of the Portfolio Funds' net asset value.

The Fund may invest in a limited number of Portfolio Funds.  Such  concentration
may result in additional  risk. The Portfolio Funds may enter into the following
transactions and certain of the related risks are described below:

A. Short Sales

Short sales are sales of securities  that are not owned or that are not intended
for  delivery  and the seller will  therefore  be  obligated  to  purchase  such
securities at a future date. The value of the open short position is recorded as
a liability, and the seller records unrealized gain or loss to the extent of the
difference  between  the  proceeds  received  and the  value of the  open  short
position.  A realized gain or loss is recorded when the short position is closed
out. By entering into short sales, the seller bears the market risk of increases
in value of the security sold short in excess of the proceeds received.

B. Swap Agreements

A swap  contract is a contract  under which two parties  agree to make  periodic
payments to each other based on the value of a  security,  a specified  interest
rate,  an index or the value of some  other  instrument  applied  to a stated or
"notional" amount.  Swaps are subject to various types of risk, including market
risk, liquidity risk, counterparty credit risk, legal risk and operations risk.

C. Options

The  Portfolio  Funds  may buy or write  put and  call  options  through  listed
exchanges and the over-the-counter  market. The buyer has the right, but not the
obligation, to purchase (in the case of a call option) or sell (in the case of a
put option) a  specified  quantity  of a specific  security or other  underlying
asset at a  specified  price  prior to or on a specified  expiration  date.  The
writer of an option is exposed to the risk

                                                                              15



               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Notes to Financial Statements (continued)

11. CONCENTRATION OF RISK (CONTINUED)

of loss if the market price of the  underlying  asset declines (in the case of a
put option) or increases (in the case of call  option).  The writer of an option
can  never  profit by more  than the  premium  paid by the buyer but can lose an
unlimited amount.

D. Futures Contracts

The  Portfolio  Funds may use futures  contracts  for  hedging  and  non-hedging
purposes.  Upon  entering  into a  futures  contract,  the  Portfolio  Funds are
required to deposit an amount ("initial  margin") equal to a certain  percentage
of the contract  value.  Pursuant to the contract,  the Portfolio Funds agree to
receive  from,  or pay to,  the  broker  an  amount  of cash  equal to the daily
fluctuation in the value of the contract. Such receipts or payments are known as
"variation  margin" and are recorded by the Portfolio Funds as unrealized  gains
or losses.  When the contract is closed,  the Portfolio  Funds record a realized
gain or loss equal to the  difference  between the value of the  contract at the
time it was  opened  and the  value at the time when it was  closed.  The use of
futures transactions  includes the risk of imperfect correlation in movements in
the price of futures  contracts,  interest rates,  underlying hedged assets, and
the  possible  inability  of the  counterparties  to meet  the  terms  of  their
contracts.

E. Leverage Transactions

In order to obtain more  investable  cash,  the Portfolio  Funds may use various
forms of leverage including  purchasing  securities on margin. Such leverage may
allow the Portfolio Funds to increase partners' capital at a greater rate during
favorable  markets,  but also may lead to a more  rapid  decrease  in  partners'
capital in unfavorable  markets. A margin transaction  consists of purchasing an
investment  with money  loaned by a broker and agreeing to repay the broker at a
later  date.  Interest  expense on the  outstanding  margin  balance is based on
market rates at the time of the borrowing.

F. Forward Foreign Currency Contracts

The Portfolio Funds may enter into forward foreign currency  contracts.  Forward
contracts are  over-the-counter  contracts  for delayed  delivery of currency in
which  the buyer  agrees to buy and the  seller  agrees to  deliver a  specified
currency at a specified price on a specified date.  Because the terms of forward
contracts are not standardized,  they are not traded on organized  exchanges and
generally can be  terminated or closed-out  only by agreement of both parties to
the contract. All commitments are marked to market on each valuation date at the
applicable  foreign  exchange rate and any resulting  unrealized gain or loss is
recorded on such date.  The Portfolio Fund realizes gains and losses at the time
forward  contracts are  extinguished  or closed upon entering into an offsetting
contract.

                                                                              16





               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Notes to Financial Statements (continued)

11. CONCENTRATION OF RISK (CONTINUED)

G. Repurchase Agreements

Repurchase  agreements are  agreements  under which a Portfolio Fund or the Fund
purchases securities from a bank that is a member of the Federal Reserve System,
a foreign bank or a securities  dealer that agrees to repurchase  the securities
from the  Portfolio  Fund at a higher price on a designated  future date. If the
seller under a repurchase  agreement  becomes  insolvent,  the Portfolio  Fund's
right to  dispose  of the  securities  may be  restricted,  or the  value of the
securities may decline before the Portfolio Fund is able to dispose of them.

H. Reverse Repurchase Agreements

Reverse repurchase  agreements are a form of borrowing that involves a sale of a
security by a Portfolio  Fund to a bank or  securities  dealer and the Portfolio
Fund's  simultaneous  agreement to  repurchase  that  security for a fixed price
(reflecting a market rate of interest) on a specific  date.  These  transactions
involve a risk that the other party to a reverse  repurchase  agreement  will be
unable or unwilling to complete the  transaction as scheduled,  which may result
in losses to the Portfolio Fund. Reverse  repurchase  transactions are a form of
leverage  and may  increase  the  volatility  of a Portfolio  Fund's  investment
portfolio.

I. Lending Portfolio Securities

Portfolio Funds may lend securities held in their portfolios to brokers, dealers
and other  financial  institutions  needing  to borrow  securities  to  complete
certain  transactions.  The lending  Portfolio  Fund continues to be entitled to
payments in amounts  equal to the  interest,  dividends  or other  distributions
payable on the loaned securities which afford it an opportunity to earn interest
on the amount of the loan and on the  loaned  securities'  collateral.  Loans of
portfolio  securities by a Sub-Manager  may not exceed 33-1/3% of the value of a
Portfolio  Account's  total assets,  and, in respect of such  transactions,  the
Portfolio  Fund will receive  collateral  consisting  of cash,  U.S.  Government
Securities  or  irrevocable  letters of credit which will be  maintained  at all
times in an amount  equal to at least 100% of the  current  market  value of the
loaned  securities.  A Portfolio Fund might  experience  loss if the institution
with which the  Portfolio  Fund has  engaged  in a  portfolio  loan  transaction
breaches its agreement with the Portfolio Fund.

J. When-Issued and Forward Commitment Securities

Portfolio  Managers  may  purchase  securities  on a  when-issued  basis and may
purchase  or sell  securities  on a forward  commitment  basis in order to hedge
against  anticipated  changes in interest rates and prices.  These  transactions
involve a commitment  by a Portfolio  Fund to purchase or sell  securities  at a
future date  (ordinarily  one or two months later).  The price of the underlying
securities, which is generally expressed in terms of yield, is fixed at the time
the commitment is made, but delivery and payment for

                                                                              17





              Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                   Notes to Financial Statements (continued)

11. CONCENTRATION OF RISK (CONCLUDED)

the securities takes place at a later date. No income accrues on securities that
have been purchased  pursuant to a forward  commitment or on a when-issued basis
prior to delivery to the  Portfolio  Fund.  When-issued  securities  and forward
commitments  may be sold  prior to the  settlement  date.  If a  Portfolio  Fund
disposes of the right to acquire a when-issued security prior to its acquisition
or disposes of its right to deliver or receive against a forward commitment,  it
may incur a gain or loss.

There is a risk that  securities  purchased  on a  when-issued  basis may not be
delivered  and that the purchaser of  securities  sold by a Portfolio  Fund on a
forward basis will not honor its purchase obligation. In such cases, a Portfolio
Fund may incur a loss.

K. Restricted and Illiquid Investments

Portfolio Funds may invest in restricted  securities and other investments which
are illiquid.  Restricted  securities are securities that may not be sold to the
public without an effective  registration  statement under the Securities Act of
1933 or, if they are  unregistered,  may be sold only in a privately  negotiated
transaction or pursuant to an exemption from registration.  The Fund's interests
in  unregistered   Portfolio  Funds  are  themselves  illiquid  and  subject  to
substantial  restrictions  on transfer.  The Fund may  liquidate an interest and
withdraw from an  unregistered  Portfolio  Fund  pursuant to limited  withdrawal
rights.  The illiquidity of these interests may adversely  affect the Fund if it
is unable to withdraw  its  investment  in a Portfolio  Fund  promptly  after it
determines to do so.

L. Liquidity

The Portfolio Funds provide for periodic  redemptions,  with lock-up  provisions
ranging from one year to three years from the initial investment.  The liquidity
provisions  shown  on the  Schedule  of  Investments  apply  after  the  lock-up
provisions.

12. INVESTMENT TRANSACTIONS

For the period  ended March 31,  2007,  the Fund made  investments  in Portfolio
Funds in the amount of $10,461,000  and redeemed  investments in Portfolio Funds
in the amount of $244,082.

13. INVESTMENTS

As of March 31, 2007, the Fund had  investments in 19 Portfolio  Funds,  none of
which were related parties.

The Fund limits its  investment  position in any one Portfolio Fund to less than
5% of the Portfolio Fund's outstanding voting securities, absent an order of the
Securities  and  Exchange  Commission  (the "SEC") (or  assurances  from the SEC
staff) under which the Fund's contribution and withdrawal of capital from a

                                                                              18




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Notes to Financial Statements (continued)

13. INVESTMENTS (CONTINUED)

Portfolio  Fund in which it holds 5% or more of the  outstanding  interests will
not be subject to various 1940 Act prohibitions on affiliated transactions.  The
Fund also is not  required  to adhere to this 5%  investment  limitation  to the
extent that it relies on certain SEC rules that provide exemptions from 1940 Act
prohibitions on affiliated  transactions.  However, to facilitate investments in
smaller Portfolio Funds deemed attractive by the Adviser,  the Fund may purchase
non-voting securities of, or waive its right to vote its interests in, Portfolio
Funds.  Although the Fund may hold  non-voting  interests,  the 1940 Act and the
rules and regulations  thereunder may nevertheless require the Fund to limit its
position in any one Portfolio  Fund, if  investments  in a Portfolio Fund by the
Fund will  equal or exceed 25% of the  Portfolio  Fund's  assets,  or such lower
percentage  limit  as may be  determined  by the Fund in  consultation  with its
counsel.  These  restrictions could change from time to time as applicable laws,
rules or interpretations thereof are modified.

Portfolio Funds' Investment Strategies:

CAPITAL STRUCTURE ARBITRAGE
Capital Structure  Arbitrage managers will typically buy "long" and sell "short"
different  classes of securities of the same issuer in anticipation of profiting
from the  relative  mispricing  between  them.  Convertible-bond  arbitrage  and
equity-warrant arbitrage are forms of balance-sheet arbitrage.

COMMODITY TRADING ADVISOR
Commodity Trading Advisor managers will typically have portfolio funds employing
this particular strategy purchase and sell local or foreign currency,  commodity
futures and options or such futures contracts based on supply and demand factors
affecting   price  within  each  market.   Certain   Portfolio  funds  also  use
commodity-related equities to implement their strategies.

EQUITY LONG BIAS
Equity Long Bias managers  will  typically  have  portfolios of long equities as
well as some short  positions.  Unlike variable bias or market  neutral,  Equity
Long Bias  managers  are  expected  to average at least 70% net long (gross long
positions minus short positions).  Leverage may be employed,  though likely at a
lower amount than market neutral or variable bias strategies. This strategy will
show a high degree of  correlation to equity  markets,  as the majority of their
profits will stem from their long  positions.  Short positions will typically be
used to hedge though may also be opportunistic in nature.

EQUITY MARKET NEUTRAL
Equity Market Neutral  managers will typically have  portfolios of long equities
and short  equities  in equal  amounts.  While  this  strategy  does  offer some
flexibility,  managers in this  strategy are expected to keep their net exposure
within  +/-20%.  Leverage  will be employed.  Short  positions  can be hedges or
profit centers.  While an overall fund can be market neutral,  managers may take
sector  exposure  (though  many  do  not).  This  strategy  should  show  little
correlation to equity markets, as returns are driven by stock picking, or in the
case of quantitatively driven strategies, factors.

                                                                              19




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Notes to Financial Statements (continued)

13. INVESTMENTS (CONCLUDED)

Portfolio Funds' Investment Strategies (concluded):

EQUITY VARIABLE BIAS
Equity  Variable Bias managers will typically  have  portfolios of long equities
and short equities. As per the strategy name, net exposure is variable,  ranging
from net long to net short to market neutral.  Security  selection may either be
fundamental or quantitative while net exposure can be either bottom up (security
specific)  or top down  (macro  driven).  Leverage is also  variable,  with some
managers  in this  strategy  using  little or no leverage  while  others may use
substantial  leverage;  typically,  leverage  will be lower than found in Equity
Market Neutral.  Short positions can be hedges or profit centers. While the bulk
of the portfolio should consist of equities,  indices, ETFS, options and futures
may also be used.This  strategy's  correlation to equity markets will vary, with
returns are driven by stock picking as well as net positioning.

EVENT DRIVEN
Event-Driven managers will typically employ strategies that involve investing in
companies  experiencing  significant  corporate changes.  Mispricings arise from
events  such as  spin-offs,  restructurings,  stub  trades,  or other  corporate
changes that the broad market does not fully comprehend and appropriately value.
This strategy also includes  activist  managers who take  controlling  stakes in
companies and force the "event" internally.

RELATIVE VALUE
Relative  Value  managers  typically seek  risk-adjusted  absolute  returns with
volatility  and  correlation  lower than the broad equity  markets by allocating
assets to Advisors that operate  primarily in the global  relative value sector.
Relative  value  strategies  seek to profit  from the  mispricing  of  financial
instruments,  capturing  spreads  between  related  securities that deviate from
their  fair value or  historical  norms.  Directional  and  market  exposure  is
generally  held to a  minimum  or  completely  hedged.  Strategies  that  may be
utilized in the relative  value sector  include  convertible  arbitrage,  equity
arbitrage and fixed-income arbitrage. Other strategies may be employed as well.

14. RECENT ACCOUNTING PRONOUNCEMENTS

In July 2006,  the Financial  Accounting  Standards  Board (FASB)  released FASB
Interpretation No. 48 "Accounting for Uncertainty in Income Taxes" (FIN 48). FIN
48 provides  guidance for how  uncertain  tax  positions  should be  recognized,
measured,  presented and disclosed in the financial statements.  FIN 48 requires
the  evaluation of tax positions  taken or expected to be taken in the course of
preparing  the Fund's tax returns to  determine  whether the tax  positions  are
"more-likely-than-not"  of being  sustained  by the  applicable  tax  authority.
Adoption of FIN 48 is required for fiscal  years  beginning  after  December 15,
2006 and is to be applied  to all open tax years as of the  effective  date.  At
this time, management is evaluating the implications of FIN 48 and its impact in
the financial statements has not yet been determined.

                                                                              20




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                    Notes to Financial Statements (concluded)

14. RECENT ACCOUNTING PRONOUNCEMENTS (CONCLUDED)

In September  2006,  the  Financial  Accounting  Standards  Board (FASB)  issued
Statement  on  Financial  Accounting  Standards  (SFAS)  No.  157,  "Fair  Value
Measurements." This standard  establishes a single  authoritative  definition of
fair  value,  sets  out a  framework  for  measuring  fair  value  and  requires
additional  disclosures about fair value  measurements.  SFAS No. 157 applies to
fair value  measurements  already  required or permitted by existing  standards.
SFAS No. 157 is  effective  for  financial  statements  issued for fiscal  years
beginning after November 15, 2007 and interim periods within those fiscal years.
The  changes  to  current  generally  accepted  accounting  principles  from the
application  of this  Statement  relate to the  definition  of fair  value,  the
methods used to measure  fair value,  and the  expanded  disclosures  about fair
value measurements.  At this time,  management is evaluating the implications of
FAS 157 and its impact on the financial statements has not yet been determined.

15. SUBSEQUENT EVENT

The Adviser,  2100 Larch Lane LLC, is now doing  business as Larch Lane Advisors
LLC.

                                                                              21




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
             Board of Managers and Officers of the Fund (unaudited)
                              as of March 31, 2007




- -----------------------------------------------------------------------------------------------------------------------
NAME, AGE,             TERM OF OFFICE    PRINCIPAL                           NUMBER OF       OTHER  HELD
AND POSITION           AND               OCCUPATION DURING                   FUNDS IN        DIRECTORSHIPS
WITH THE               LENGTH            PAST 5 YEARS                        FUND            HELD BY
FUND                   OF TIME                                               COMPLEX         MANAGERS
                       SERVED                                                OVERSEEN
                                                                             BY MANAGER
- -----------------------------------------------------------------------------------------------------------------------
                                                DISINTERESTED MANAGERSo
- -----------------------------------------------------------------------------------------------------------------------
                                                                                  

Gerald Hellerman, 69   Indefinite/Since  Principal, Hellerman                     6          Director, The Mexico
                       October 2006      Associates (financial and                           Equity and Income Fund,
                                         corporate consulting), 1993 -                       Inc.; Director,
Manager                                  present; Chief Compliance                           Innovative Clinical
                                         Officer, The Mexico Equity and                      Solutions, Ltd.;
                                         Income Fund, Inc., June 2001 -                      Director, FNC Realty;
                                         present.                                            Director, AirNet
                                                                                             Systems, Inc.; Director,
                                                                                             MVC Capital, Inc.;
                                                                                             Director, Brantley
                                                                                             Capital Corporation
- -----------------------------------------------------------------------------------------------------------------------
Paul D. Malek, 39      Indefinite/Since  General Counsel, Latigo                  6          None
                       October 2006      Partners, LP (investment
                                         management), February 2006 -
Manager                                  present; Associate, Milbank,
                                         Tweed, Hadley & McCloy LLP,
                                         May 2001 - January 2006.
- -----------------------------------------------------------------------------------------------------------------------
George W. Morriss, 59  Indefinite/Since  Executive Vice President and             6          Trustee/Director,
                       October 2006      Chief Financial Officer,                            open-end and closed-end
                                         People's Bank (financial                            funds in Neuberger
Manager                                  services company), 1991 - 2001.                     Berman Fund Complex.
- -----------------------------------------------------------------------------------------------------------------------
                                                  INTERESTED MANAGER*o
- -----------------------------------------------------------------------------------------------------------------------
William J. Landes, 54  Indefinite/Since  Director, 2100 Larch Lane LLC,           6          None
                       October 2006      October 2005 - present; Chief
                                         Executive Officer, 2100
Manager, President                       Capital Group LLC, March 2004
and Chief Executive                      - present; Chief Investment
Officer                                  Officer, Putnam Multi-Strategy
                                         Hedge Funds, Putnam
                                         Investments, February 2003 -
                                         March 2004; Head of Global
                                         Investment Research, January
                                         1998 - February 2003.
- -----------------------------------------------------------------------------------------------------------------------

                                                                              22




                                   Old Mutual 2100 Absolute Return Master Fund, L.L.C.
                            Board of Managers and Officers of the Fund (concluded) (unaudited)
                                                   as of March 31, 2007


- -----------------------------------------------------------------------------------------------------------------------
NAME, AGE,             TERM OF OFFICE    PRINCIPAL                           NUMBER OF       OTHER  HELD
AND POSITION           AND               OCCUPATION DURING                   FUNDS IN        DIRECTORSHIPS
WITH THE               LENGTH            PAST 5 YEARS                        FUND            HELD BY
FUND                   OF TIME                                               COMPLEX         MANAGERS
                       SERVED                                                OVERSEEN
                                                                             BY MANAGER
- -----------------------------------------------------------------------------------------------------------------------
                                                 OFFICERS WHO ARE NOT MANAGERSo
- -----------------------------------------------------------------------------------------------------------------------
Ross Weissman, 36      Indefinite/Since  Chief Financial Officer, 2100          N/A                    N/A
                       October 2006      Larch Lane LLC, 2005 -
                                         present; Controller and Chief
Treasurer and Chief                      Financial Officer, Larch Lane
Financial Officer                        Advisors LP, 1999 - 2005.
- -----------------------------------------------------------------------------------------------------------------------
M. Todd Williams, 35   Indefinite/Since  Chief Compliance Officer and           N/A                    N/A
                       October 2006      Chief Legal Officer, 2100
                                         Larch Lane LLC, 2003 -
Interim Chief                            present;
Compliance Officer                       Assistant General Counsel,
                                         Ranger Capital, March 2003 -
                                         July 2003; Associate, Akin
                                         Gump Strauss Hauer & Feld,
                                         LLP, September 1998 - February
                                         2003.
- -----------------------------------------------------------------------------------------------------------------------

 *Manager who is an "interested person" (as defined by the 1940 Act) of the Fund because of his
  affiliation with the Adviser and its affiliates.

 oThe address of each Manager and Officer is as follows: c/o 2100 Larch Lane LLC, 800 Westchester Avenue,
  S-618, Rye Brook, New York 10573.



                                                                              23



               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
              Investment Management Agreement Approval (Unaudited)


The  investment  management  agreement  between Old Mutual 2100 Absolute  Return
Master Fund, L.L.C., a Delaware limited liability company (the "Fund"), and 2100
Larch  Lane LLC, a Delaware  limited  liability  company  (the  "Adviser")  (the
"Investment  Management  Agreement"),  with an  initial  term of two  years  was
subject to approval by: (i) the Fund's Board of Managers (the "Board"); and (ii)
the vote of a majority of the outstanding voting  securities,  as defined by the
1940 Act, of the Fund,  provided that the continuance must also be approved by a
majority of the managers (the  "Managers") who are not "interested  persons," as
defined by the 1940 Act, of the Fund (the "Independent Managers"),  by vote cast
in person at a meeting  called for the purpose of voting on such  approval.  The
Fund is a master fund in a  master/feeder  structure  in which its feeder  funds
(each,  a  "Feeder"  and  collectively   with  the  Fund,  the  "Funds")  invest
substantially all of their assets in the Fund.

At a  meeting  of the Board  held on  October  13,  2006,  all of the  Managers,
including all of the Independent  Managers,  approved the Investment  Management
Agreement for the initial  two-year term. In considering  whether to approve the
Investment  Management  Agreement,  the Board  reviewed  various  materials from
counsel and from the Adviser which  included:  (i)  information  concerning  the
services  to be  rendered to the Funds by the Adviser and the fees to be paid by
the Funds to the Adviser; (ii) information  concerning the individuals who would
be responsible for the day-to-day  management of the Fund's assets;  and (iii) a
summary of the legal duties of the Board under the 1940 Act. In particular,  the
Board considered the following:

(a) THE NATURE,  EXTENT AND  QUALITY OF SERVICES TO BE PROVIDED BY THE  ADVISER.
The Managers  reviewed the proposed  services  that the Adviser would provide to
both the Fund and reviewed various presentations from management in this regard.
In connection  with the investment  advisory  services that would be provided to
the Fund, the Board discussed,  in detail,  with  representatives of the Adviser
the proposed  management of the Fund's investments in accordance with the Fund's
stated  investment  objective and policies and the types of  transactions  to be
entered  into on behalf of the Fund.  The Board noted  that,  in addition to the
investment  advisory  services  that  would be  provided  to the Fund  under the
Investment  Management   Agreement,   the  Adviser  also  will  provide  certain
administrative  and  other  services  necessary  for the  operation  of the Fund
(including legal and compliance services relating to the provision of investment
advisory services). The Managers took into account the experience, resources and
strengths of the Adviser in managing  investment  vehicles that invest primarily
in Portfolio Funds, including the Adviser's experience in advising an investment
vehicle that has investment  objectives  and strategies  similar to those of the
Fund.  The Managers  considered the amount of assets under the management of the
Adviser,  as well as the experience of the individuals  comprising the Adviser's
Investment  Committee.  Based on its review of the  information  provided at the
meeting, and the discussions with the representatives of the Adviser and counsel
to the Fund at the meeting,  the Board expressed  satisfaction with the scope of
services  proposed to be provided to the Fund under the agreement and determined
that these services should be of reasonably high quality.

(b)  INVESTMENT  PERFORMANCE  OF THE FUND AND ADVISER.  In  connection  with the
evaluation of the services to be provided by the Adviser, the Managers generally
reviewed  the  performance  of the  Adviser  with  respect  to other  investment
vehicles managed by it. Because the Fund was newly formed,  the Managers did not
consider the investment performance of the Fund.

                                                                              24




               Old Mutual 2100 Absolute Return Master Fund, L.L.C.
        Investment Management Agreement Approval (unaudited) (concluded)


(c) COST OF THE  SERVICES  TO BE  PROVIDED  AND  PROFITS TO BE  REALIZED  BY THE
ADVISER FROM THE  RELATIONSHIP  WITH THE FUNDS. The Managers also considered the
cost of the  services  to be  provided  by the  Adviser.  Under  the  Investment
Management  Agreement,  the Fund would not pay any investment  management fee to
the Adviser so long as the Adviser serves as the investment adviser to a Feeder.
The Board noted that in the event the Adviser  ceases to serve as the Adviser to
a Feeder, the Fund will be charged the lowest annual rate that had most recently
been charged by the Adviser to a Feeder.  The Board  considered  that, under the
existing Feeder's Investment  Management  Agreement with the Adviser, the Feeder
pays the Adviser a fee at the annual rate of 1.25% of the  Feeder's  average net
assets.  The Board also  considered  that the Fund will bear the  advisory  fees
charged by the Portfolio Funds. The Managers reviewed information  comparing the
proposed  advisory fee rate and  estimated  total  expense  ratio of the Fund to
those of comparable registered funds.

The Managers then  considered  the profits to be realized by the Adviser and its
affiliates  from their  relationships  with the Funds.  Since the Fund was newly
formed and the eventual aggregate amount of the Funds' assets was uncertain, the
Adviser  was  not  able  to  provide  the  Managers  with  specific  information
concerning the expected profits to be realized by the Adviser and its affiliates
from  their  relationships  with the Funds.  The  Managers  noted the  Adviser's
expectation that the profitability level would not be excessive.

The Managers  compared both the services to be rendered and the proposed fees to
be paid under the  Investment  Management  Agreement  to other  contracts of the
Adviser and to other contracts of other advisers with respect to various similar
closed-end registered investment companies.  In particular,  the Board evaluated
the  Funds'  contractual  fee rate for  advisory  services  as  compared  to the
contractual fee rate of other publicly offered closed-end funds that are managed
by other investment  advisers that invest  primarily in unregistered  funds. The
Board  found  that the  proposed  advisory  fee rate for the Fund was within the
range of fee rates paid by such other similar registered funds.

(d) THE EXTENT TO WHICH  ECONOMIES  OF SCALE WOULD BE REALIZED AS THE FUND GROWS
AND WHETHER FEE LEVELS  WOULD  REFLECT SUCH  ECONOMIES  OF SCALE.  The Board was
cognizant of the fact that economies of scale in costs of providing services may
be realized when there is a significant increase in a fund's assets. Because the
Fund was newly formed and the eventual aggregate amount of the Funds' assets was
uncertain,  the  Adviser  was not able to provide  the  Managers  with  specific
information  concerning the extent to which economies of scale would be realized
as the Funds grow and whether fee levels would reflect such  economies of scale,
if any. The  Managers  determined  that they would  revisit this issue after the
initial two-year term of the Investment Management Agreement.

CONCLUSION.  Based on all of the  foregoing,  and such other  matters  that were
deemed relevant,  the Board found the proposed level of advisory fees to be fair
and reasonable in light of the services  proposed to be provided by the Adviser.
No single factor was  determinative to the decision of the Board.  Based on this
determination,  all of the  Managers  who were  present at the  October 13, 2006
meeting,  including all of the  Independent  Managers,  approved the  Investment
Management Agreement for the initial two-year term.

                                                                              25




ITEM 2.    CODE OF ETHICS.

The registrant has adopted a code of ethics that applies to the registrant's
principal executive officer and principal financial officer or persons
performing similar functions, regardless of whether these individuals are
employed by the registrant or a third party. For the fiscal year ended March 31,
2007, there were no amendments to a provision of its code of ethics, nor were
there any waivers granted from a provision of the code of ethics. A copy of this
code of ethics is filed with this form N-CSR under Item 12 (a)(1).

ITEM 3.    AUDIT COMMITTEE FINANCIAL EXPERT.

(a)(1) The registrant's board of managers has determined that the registrant has
at least one audit committee financial expert serving on the audit committee.

(a)(2) The audit committee financial expert is Gerald Hellerman. Mr. Hellerman
is independent as defined in Form N-CSR Item 3(a)(2).

ITEM 4.    PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Fees billed by Anchin, Block & Anchin LLP ("Anchin") related to Old Mutual 2100
Absolute Return Master Fund (the "Fund").

Anchin billed the Fund aggregate fees for services rendered to the Fund for the
fiscal year ended March 31, 2007* as follows:



- ----------------------------------- -----------------------------------------------------
                                                              2007
- ----------------------------------- -----------------------------------------------------
                                    All fees and      All fees and       All other fees
                                    services to the   services to        and services to
                                    Fund that were    service            service
                                    pre-approved      affiliates that    affiliates that
                                                      were pre-          did not require
                                                      approved           pre-approval

- --------- ------------------------- ---------------- ------------------ -----------------
                                                                  
(a)       Audit Fees(1)                $55,000            N/A                 N/A

- --------- ------------------------- ---------------- ------------------ -----------------
(b)       Audit-Related Fees             $0               N/A                 N/A

- --------- ------------------------- ---------------- ------------------ -----------------
(c)       Tax Fees                     $20,000            N/A                 N/A

- --------- ------------------------- ---------------- ------------------ -----------------
(d)       All Other Fees                 $0               N/A                 N/A

- --------- ------------------------- ---------------- ------------------ -----------------


* No such fees were billed for 2006 because the Registrant was organized on
April 25, 2006 and commenced operations on November 1, 2006.

Notes:
   (1)     Audit fees include amounts related to the audit of the registrant's
           annual financial statements and services normally provided by the
           accountant in connection with statutory and regulatory filings or
           engagements.



(e)(1)     The registrant's Audit Committee pre-approves the principal
           accountant's engagements for audit and non-audit services to the
           registrant and, as required, non-audit services to service affiliates
           on a case-by-case basis. Pre-approval considerations include whether
           the proposed services are compatible with maintaining the principal
           accountant's independence.

(e)(2)     Percentage of fees billed by Anchin applicable to non-audit services
           pursuant to waiver of pre-approval requirement were as follows:


                ---------------------- ------------ -------------
                                           2007         2006
                ---------------------- ------------ -------------
                Audit-Related Fees          0%           N/A

                ---------------------- ------------ -------------
                Tax Fees                    0%           N/A

                ---------------------- ------------ -------------
                All Other Fees              0%           N/A

                ---------------------- ------------ -------------


(f)        Not applicable.

(g)        The amount of non-audit fees that were billed by Anchin for services
           rendered to (i) the registrant, and (ii) the registrant's investment
           adviser and any entity controlling, controlled by, or under common
           control with the adviser that provides ongoing services to the
           registrant for the fiscal year ended March 31, 2007, were $0 and $0,
           respectively.

           No such fees were billed for 2006 because the Registrant was
           organized on April 25, 2006 and commenced operations on November 1,
           2006.

(h)        Not applicable.

ITEM 5.    AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable.

ITEM 6.    SCHEDULE OF INVESTMENTS

The Schedule of Investments is included as part of the report to shareholders
filed under Item 1 of this form N-CSR.

ITEM 7.    DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END
MANAGEMENT INVESTMENT COMPANIES.

The following is the Proxy Voting Policies and Procedures of Larch Lane Advisors
LLC (the "Adviser") in its entirety:

The Firm provides investment advisory services to private investment funds and
managed accounts, and invests the assets of these Funds and accounts in
securities issued by private issuers. Through these private issuers the Firm may
be delegated the right to vote, on behalf of the Funds and accounts, proxies
received from companies, the securities of which are owned by the underlying
private issuers in which the Funds and accounts have invested. In addition, from
time to time, the private issuers may amend or revise their governing documents
or seek investor consents. The Firm has authority to vote proxies relating to
such securities on behalf of the Funds and accounts it manages.

The Securities and Exchange Commission (the "SEC") has adopted Rule 206(4)-6
under the Investment Advisers Act. Under this rule, registered investment
advisers that exercise voting authority over securities




held in client portfolios are required to implement proxy voting policies and
describe those policies to their clients.

The Investment Committee (which may delegate a Proxy Committee for this purpose)
is responsible for making all proxy voting decisions in accordance with these
proxy voting policy and procedures (the "POLICIES"). The investment team is
responsible for the actual voting of all proxies in a timely manner, while the
Compliance Officer is responsible for monitoring the effectiveness of the
Policies. (SEE Section IV, "Procedures for Proxies".)

The Policies attempt to generalize a complex subject. The Firm may, from time to
time, determine that it is in the best interests of its clients to depart from
specific policies described herein. The rationale for any such departure will be
memorialized in writing by the Compliance Officer.

I. GENERAL POLICY

The general policy is to vote proxy proposals, amendments, consents or
resolutions relating to client securities, including interests in private
investment funds, if any (collectively, "PROXIES"), in a manner that reasonably
furthers the best interests of the Funds managed by the Firm and is consistent
with the investment philosophy as set forth in the relevant investment
management documents, as determined by the Firm in its discretion, and taking
into account relevant factors, including, but not limited to:

o the impact on the value of the securities;
o the anticipated costs and benefits associated with the proposal;
o the effect on liquidity; and
o customary industry and business practices.

II. SPECIFIC POLICIES

A. ROUTINE MATTERS

Routine matters are typically proposed by Management (as defined below) of a
company and meet the following criteria: (i) they do not measurably change the
structure, management, control or operation of the company; (ii) they do not
measurably change the terms of, or fees or expenses associated with, an
investment in the company; and (iii) they are consistent with customary industry
standards and practices, as well as the laws of the state of incorporation
applicable to the company.

For routine matters, the Firm will vote in accordance with the recommendation of
the company's management, directors, general partners, managing members or
trustees (collectively, the "MANAGEMENT"), as applicable, unless, in the Firm's
opinion, such recommendation is not in the best interests of the investing Funds
or accounts.

1. GENERAL MATTERS

The Firm will generally vote FOR proposals:

           o to set time and location of annual meeting;
           o to change the fiscal year of the company; and
           o to change the name of a company.

2. BOARD MEMBERS

A. ELECTION OR RE-ELECTION. The Firm will generally vote FOR Management
proposals to elect or re-elect Board members.

B. FEES TO BOARD MEMBERS. The Firm will generally vote FOR proposals to increase
fees paid to Board members, unless it determines that the compensation exceeds
market standards.


3. CAPITAL STRUCTURE

The Firm will generally vote FOR proposals to change capitalization, including
to increase authorized common shares or to increase authorized preferred shares,
as long as the proposal does not either: (i) establish a class or classes of
shares or interests with terms that may disadvantage the class held by the
investing Funds or accounts or (ii) result in disproportionate voting rights for
preferred shares or other classes of shares or interests.

4. APPOINTMENT OF AUDITORS

The Firm will generally vote FOR the approval of auditors and proposals
authorizing the Board to fix auditor fees, unless:

           o the Firm has serious concerns about the accountants presented,
             including their independence, or the audit procedures used; or
           o the auditors are being changed without explanation.

B. NON-ROUTINE MATTERS

Non-routine matters involve a variety of issues and may be proposed by a
company's Management or beneficial owners (I.E., shareholders, members,
partners, etc. (collectively, the "OWNERS")). These proxies may involve one or
more of the following: (i) a measurable change in the structure, management,
control or operation of the company; (ii) a measurable change in the terms of,
or fees or expenses associated with, an investment in the company; or (iii) a
change that is inconsistent with industry standards and/or the laws of the state
of incorporation applicable to the company.

1. BOARD MEMBERS

A. TERM LIMITS. The Firm will generally vote FOR proposals to require a
reasonable retirement age (E.G., 72) for Board members, and will vote on a
CASE-BY-CASE basis on proposals to attempt to limit tenure.

B. REPLACEMENT. The Firm will generally vote AGAINST proposals that make it more
difficult to replace Board members, including proposals:

           o to stagger the Board;
           o to overweight Management representation on the Board;
           o to introduce cumulative voting (cumulative voting allows the Owners
             to "stack" votes behind one or a few individuals for a position on
             the Board, thereby giving minority Owners a greater chance of
             electing the Board member(s));
           o to introduce unequal voting rights;
           o to create supermajority voting; or
           o to establish pre-emptive rights.

C. LIABILITY AND INDEMNIFICATION. In order to promote accountability, the Firm
will generally vote AGAINST proposals to limit the personal liability of Board
members for any breach of fiduciary duty or failure to act in good faith.

D. OWNERSHIP ISSUES. The Firm will generally vote FOR proposals that require
Management to own a minimum interest in the company. The purpose of this policy
is to encourage the alignment of Management's interests with the interests of
the company's Owners. However, the Firm will generally vote AGAINST proposals
for stock options or other compensation that grant an ownership interest for
Management IF SUCH PROPOSALS offer greater than 15% of the outstanding
securities of a company because such options may dilute the voting rights of
other Owners of the company.


2. COMPENSATION, FEES AND EXPENSES

In general, the Firm will vote AGAINST proposals to increase compensation, fees
or expenses to be paid to the company's Owners, unless the Firm determines that
the benefits resulting to the company and its Owners justifies the increased
compensation, fees or expenses.

In many circumstances, where private investment funds seek to change material
terms such as compensation, fee and expense terms, the Firm will examine the
investment opportunity anew in light of the proposed new terms, considering the
private investment funds returns, portfolio and strategy allocations,
alternative investment opportunities and other factors generally considered when
making an investment decision. When applying this examination, the Firm may vote
for proposals where the circumstances of a particular investment justify the
revised compensation, fee and expense terms.

3. VOTING RIGHTS

The Firm will generally vote AGAINST proposals:

           o to introduce unequal voting or dividend rights among the classes;
           o to change the amendment provisions of a company's charter documents
             by removing Owner approval requirements;
           o to require supermajority (2/3) approval for votes rather than a
             simple majority (1/2);
           o to restrict the Owners' right to act by written consent; or
           o to restrict the Owners' right to call meetings, propose amendments
             to the articles of incorporation or other governing documents of
             the company or nominate Board members.

The Firm will generally vote FOR proposals that eliminate any of the foregoing
rights or requirements.

4. TAKEOVER DEFENSES AND RELATED ACTIONS

The Firm will generally vote AGAINST any proposal to create any plan or
procedure designed primarily to discourage a takeover or other similar action,
including "poison pills". Examples of "poison pills" include:

           o large increases in the amount of stock authorized but not issued;
           o blank check preferred stock (stock with a fixed dividend and a
             preferential claim on company assets relative to common shares, the
             terms of which are set by the Board at a future date without
             further action by the Owners);
           o compensation that would act to reward Management as a result of a
             takeover attempt, whether successful or not, such as revaluing
             purchase price of stock options, or "golden parachutes";
           o fixed price amendments that require a certain price to be offered
             to all Owners based on a fixed formula; and
           o greenmail provisions that allow a company to make payments to a
             bidder in order to persuade the bidder to abandon its takeover
             plans.

The Firm will generally vote FOR proposals that eliminate any of the foregoing
rights or requirements, as well as proposals to:

           o require that golden parachutes or golden handcuffs be submitted for
             ratification by the Owners; and
           o to opt out of state anti-takeover laws deemed by the Firm to be
             detrimental.

The Firm will generally vote on a CASE-BY-CASE basis regarding other proposals
that may be used to prevent takeovers, such as the establishment of employee
stock purchase or ownership plans.

5. REINCORPORATION

The Firm will generally vote FOR a change in the state of incorporation if the
change is for valid business reasons (such as reincorporating in the same state
as the headquarters of any controlling company).


6. DEBT ISSUANCE AND PLEDGING OF ASSETS FOR DEBT

The Firm will generally vote proxies relating to the issuance of debt, the
pledging of assets for debt, and an increase in borrowing powers on a
CASE-BY-CASE basis, taking into consideration relevant factors, including, for
example:

           o the potential increase in the company's outstanding interests or
             shares, if any (E.G., convertible bonds); and
           o the potential increase in the company's capital, if any, over the
             current outstanding capital.

7. MERGERS OR ACQUISITIONS

The Firm will vote proxies relating to mergers or acquisitions on a CASE-BY-CASE
basis, but will generally vote for any proposals that the Firm believes will
offer fair value to its clients.

8. TERMINATION OR LIQUIDATION OF THE COMPANY

The Firm will vote proxies relating to the termination or liquidation of a
company on a CASE-BY-CASE basis, taking into consideration one or more of the
following factors:

           o terms of liquidation;
           o past performance of the company; and
           o strategies employed to save the company.

9. SOCIAL & ENVIRONMENTAL ISSUES AND CORPORATE RESPONSIBILITY

The Firm will vote proxies relating to social and environmental issues on a
CASE-BY-CASE basis, but will generally vote for any proposals that will reduce
discrimination, improve protections to minorities and disadvantaged classes, and
increase conservation of resources and wildlife.

The Firm will generally vote AGAINST any proposals that place arbitrary
restrictions on the company's ability to invest, market, enter into contractual
arrangements or conduct other activities. The Firm will also generally vote
AGAINST proposals:

           o to bar or restrict charitable contributions; or
           o to limit corporate political activities.

10. ALL OTHER MATTERS

All other decisions regarding proxies will be determined on a CASE-BY-CASE basis
taking into account the general policy, as set forth above.

C. ABSTAINING FROM VOTING OR AFFIRMATIVELY NOT VOTING

The Firm will abstain from voting (which generally requires submission of a
proxy voting card) or affirmatively decide not to vote if the Firm determines
that abstaining or not voting is in the best interests of the Fund or account.
In making such a determination, the Firm will consider various factors,
including, but not limited to: (i) the costs associated with exercising the
proxy (E.G., translation or travel costs); and (ii) any legal restrictions on
trading resulting from the exercise of a proxy. The Firm will not abstain from
voting or affirmatively decide not to vote a proxy if the Fund or account is a
plan asset fund subject to the requirements of the Employee Retirement Income
Security Act of 1974, as amended. Furthermore, the Firm will not abstain from
voting or affirmatively decide not to vote merely to avoid a conflict of
interest.


III. CONFLICTS OF INTEREST

At times, conflicts may arise between the interests of the investing Funds or
accounts, on the one hand, and the interests of the Firm or its affiliates, on
the other hand. If the Firm determines that it has, or may be perceived to have,
a conflict of interest when voting a proxy, the Firm will address matters
involving such conflicts of interest as follows:

A. If a proposal is addressed by the specific policies herein, the Firm will
vote in accordance with such policies;

B. If the Firm believes it is in the best interest of the investing Funds or
accounts to depart from the specific policies provided for herein, the Firm will
be subject to the requirements of C or D below, as applicable;

C. If the proxy proposal is (1) not addressed by the specific policies or (2)
requires a case-by-case determination by the Firm, the Firm may vote such proxy
as it determines to be in the best interest of the investing Funds or accounts,
without taking any action described in D below, provided that such vote would be
against the Firm's own interest in the matter (I.E., against the perceived or
actual conflict). The Firm will memorialize the rationale of such vote in
writing; and

D. If the proxy proposal is (1) not addressed by the specific policies or (2)
requires a case-by-case determination by the Firm, and the Firm believes it
should vote in a way that may also benefit, or be perceived to benefit, its own
interest, then the Firm must take one of the following actions in voting such
proxy: (a) delegate the voting decision for such proxy proposal to an
independent third party; (b) delegate the voting decision to an independent
committee of partners, members, directors or other representatives of the Funds
or accounts, as applicable; (c) inform the investors in the investing Funds or
the owners of the investing accounts of the conflict of interest and obtain
consent to (majority consent in the case of a Fund) vote the proxy as
recommended by the Firm; or (d) obtain approval of the decision from the Firm's
Compliance Officer and third party Legal Advisors.

IV. PROCEDURES FOR PROXIES

The Investment Committee will be responsible for determining whether each proxy
is for a "routine" matter or not, as described above. All proxies identified as
"routine" will be voted by the Chief Legal Officer in accordance with the
Policies.

Any proxies that are not clearly "routine" will be submitted to the Investment
Committee, who/which will determine how to vote each such proxy by applying the
Policies. Upon making a decision, the proxy will be executed and returned to the
Chief Legal Officer for submission to the company. Upon receipt of an executed
proxy, the Firm's paralegal will update the investing Funds' or accounts' proxy
voting record. The Chief Legal Officer is responsible for the actual voting of
all proxies in a timely manner. The Compliance Officer is responsible for
monitoring the effectiveness of the Policies.

In the event the Firm determines that the investing Funds or accounts should
rely on the advice of an independent third party or a committee regarding the
voting of a proxy, the Firm will submit the proxy to such third party or
committee for a decision. The Chief Legal Officer will execute the proxy in
accordance with such third party's or committee's decision.

V. RECORD OF PROXY VOTING

The Compliance Officer also will maintain, or have available, written or
electronic copies of each proxy statement received and of each executed proxy.

The Compliance Officer will also maintain records relating to each proxy,
including (i) the determination as to whether the proxy was routine or not, (ii)
the voting decision with regard to each proxy; and (iii) any documents created
by the Investment Committee, or others, that were material to making the voting
decision.


The Firm will maintain a record of each written request from an investor in a
Fund or owner of an managed account for proxy voting information and the Firm's
written response to any request (oral or written) from an investor in a Fund or
owner of an managed account for proxy voting information.

The Compliance Officer will maintain such records in its offices for two years
from the end of the fiscal year during which the record was created, and for an
additional three years in an easily accessible place.

ITEM 8.  PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES

(A)(1) PORTFOLIO MANAGERS

The day-to-day management of the Fund's portfolio is the responsibility of the
Adviser's Investment Committee, which is led by Mark Jurish, the Adviser's Chief
Investment Officer, and also includes Kenneth Stemme and Ross Weissman (each, a
"Portfolio Manager").

Mark Jurish is the Chief Executive Officer of the Adviser, an investment
advisory firm dedicated to the alternative investment industry and serving hedge
funds and institutional investors. The Adviser is registered with the SEC as an
investment advisor and with the CFTC as a Commodity Pool Operator. Prior to
forming the Adviser in 1999, Mr. Jurish was Managing Director at Paloma
Partners, a firm that he joined in 1988. At Paloma, Mr. Jurish was primarily
responsible for evaluating, selecting, and monitoring suitable investments for
various Paloma trading entities, as well as creating and structuring new
products. His duties included the creation and management of the initial
Upstream Partners Fund in 1993. From 1986 to 1988, Mr. Jurish was employed at
Skadden, Arps, Slate, Meagher and Flom as a specialist in financial investment
modeling and management consulting. Mr. Jurish began his financial career in
1984 at Arthur Young & Company (a predecessor of Ernst & Young), an
international accounting and consulting firm. Previously, he served as an
Independent Trustee of the MBIA Capital/Claymore Managed Duration Investment
Grade Municipal Fund, on the Best Practices Committee of the Greenwich
Roundtable and on the Board of Directors for the Managed Funds Association. Mr.
Jurish received his B.A. from State University of New York at Albany in 1980 and
his M.B.A. in Finance from New York University in 1984.


Ross M. Weissman is the Chief Financial Officer of the Adviser. Mr. Weissman
originally joined the Adviser in December, 1999. Prior to joining the Adviser,
Mr. Weissman was employed at Kenmar Advisory Corp in the fund administration and
risk management group. In 1997, Mr. Weissman joined Wexford Management as the
controller for the Wexford Spectrum Fund, where he was responsible for the
accounting and operations of the fund. From December 1996 until April 1997, he
was employed with KPMG Peat Marwick as a senior consultant in the forensic
accounting group. Mr. Weissman began his career in October 1994 with the public
accounting firm of Leslie Sufrin and Company. He is a Certified Public
Accountant and received his B.B.S. from Pace University.

Kenneth W. Stemme, Director of Research, joined the Adviser in April 2007. Mr.
Stemme was previously a Senior Vice President and Director of Hedge Fund
Investments at Northern Trust Global Advisors, where he managed approximately $1
billion in assets and chaired the Hedge Fund Investment Committee. Prior to
joining Northern Trust in 2003, Mr. Stemme was a Managing Director in the
Alternative Investment Group at American Express Asset Management. From 1999 to
2002, Mr. Stemme was Executive Director in the Alternative Investment Group at
CIBC Oppenheimer, where he was involved in the creation and management of a
registered fund of funds. From 1990 through 1998, Mr. Stemme worked at Harris
Associates, last serving as a research associate. Mr. Stemme received his B.A.
from Cornell University and his M.B.A. from DePaul University.


(A)(2) OTHER FUNDS AND ACCOUNTS MANAGED

The following table sets forth information about funds and accounts other than
the Fund for which the Portfolio Managers are primarily responsible for the
day-to-day portfolio management as of April 30, 2007.





                       REGISTERED INVESTMENT COMPANIES     POOLED INVESTMENT VEHICLES MANAGED          OTHER ACCOUNTS MANAGED
                       MANAGED BY THE PORTFOLIO MANAGER         BY THE PORTFOLIO MANAGER              BY THE PORTFOLIO MANAGER
                       --------------------------------       ----------------------------        ---------------------------------
NAME OF FUND'S
PORTFOLIO MANAGER        NUMBER          TOTAL ASSETS           NUMBER       TOTAL ASSETS            NUMBER          TOTAL ASSETS
- -----------------      --------        ----------------       ----------   ----------------       -----------      ----------------
                                                                                                   

Mark Jurish                5             $21,545,698              15         $660,823,161               1            $133,616,255

Kenneth Stemme             5             $21,545,698              15         $660,823,161               1            $133,616,255

Ross Weissman              5             $21,545,698              15         $660,823,161               1            $133,616,255

- -------------------------------------------------------------------------------------------------------------------







                           REGISTERED INVESTMENT                   POOLED INVESTMENT
                              COMPANIES MANAGED                     VEHICLES MANAGED                  OTHER ACCOUNTS MANAGED
                           BY THE PORTFOLIO MANAGER              BY THE PORTFOLIO MANAGER            BY THE PORTFOLIO MANAGER
                     -------------------------------------    -----------------------------      -----------------------------

                     NUMBER WITH                              NUMBER WITH      TOTAL ASSETS      NUMBER WITH   TOTAL ASSETS WITH
NAME OF FUND'S       PERFORMANCE      TOTAL ASSETS WITH       PERFORMANCE-   WITH PERFORMANCE   PERFORMANCE-   PERFORMANCE-BASED
PORTFOLIO MANAGER    BASED FEES     PERFORMANCE-BASED FEES    BASED FEES        BASED FEES       BASED FEES       BASED FEES
- -----------------    -----------    ----------------------    ------------   ----------------   ------------   -----------------

                                                                                          
Mark Jurish               0                                       3            $36,202,000            0

Kenneth Stemme            0                                       3            $36,202,000            0

Ross Weissman             0                                       3            $36,202,000            0

(a)(3) Compensation

Compensation for the Portfolio Managers is a combination of a fixed salary and a
bonus. The bonus paid to a Portfolio Manager for any year may be made with
reference, in part, to the performance of the Fund or any other fund or account
managed by the Adviser during such year. The amount of salary and bonus paid to
the Portfolio Managers is based on a variety of factors, including the financial
performance of the Adviser, execution of managerial responsibilities, client
interactions and teamwork support. As part of their compensation, the Portfolio
Managers also have 401k plans that enable them to direct a percentage of their
pre-tax salary and bonus, without any contribution from the Adviser, into a
tax-qualified retirement plan.

(a)(4) Fund Ownership

The following table sets forth the dollar range of Interests beneficially owned
by the Portfolio Managers as of April 30, 2007.

                  PORTFOLIO MANAGER         DOLLAR RANGE
                  -----------------         ------------
                  Mark Jurish               None
                  Kenneth Stemme            None
                  Ross Weissman             None



ITEM 9.    PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT COMPANY AND
AFFILIATED PURCHASERS.

Not applicable.

ITEM 10.   SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

Not applicable.

ITEM 11.   CONTROLS AND PROCEDURES.

(a) The certifying officers, whose certifications are included herewith, have
evaluated the registrant's disclosure controls and procedures within 90 days of
the filing date of this report. In their opinion, based on their evaluation, the
registrant's disclosure controls and procedures are adequately designed, and are
operating effectively to ensure, that information required to be disclosed by
the registrant in the reports it files or submits under the Securities Exchange
Act of 1934 is recorded, processed, summarized and reported within the time
periods specified in the Securities and Exchange Commission's rules and forms.

(b) There were no significant changes in the registrant's internal control over
financial reporting that occurred during the registrant's last fiscal half-year
that has materially affected, or is reasonably likely to materially affect, the
registrant's internal control over financial reporting.

ITEMS 12.  EXHIBITS.

(a)(1) Code of Ethics attached hereto.

(a)(2) A separate certification for the principal executive officer and the
principal financial officer of the registrant as required by Rule 30a-2(a) under
the Investment Company Act of 1940, as amended (17 CFR 270.30a-2(a)), are filed
herewith.

(b) Officer certifications as required by Rule 30a-2(b) under the Investment
Company Act of 1940, as amended (17 CFR 270.30a-2(b)) also accompany this filing
as an Exhibit.

- --------------------------------------------------------------------------------


                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.


(Registrant)                              Old Mutual 2100 Absolute Return Master
                                          Fund, L.L.C.

By (Signature and Title)*                 /s/ William J. Landes
                                          --------------------------------------
                                          William J. Landes
                                          President & Chief Executive Officer
Date: June 8, 2007


Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, this report has been signed below by the
following persons on behalf of the registrant and in the capacities and on the
dates indicated.



By (Signature and Title)*                 /s/ William J. Landes
                                          --------------------------------------
                                          William J. Landes
                                          President & Chief Executive Officer
Date: June 8, 2007


By (Signature and Title)*                 /s/ Ross Weissman
                                          --------------------------------------
                                          Ross Weissman
                                          Treasurer & Chief Financial Officer
Date: June 8, 2007


* Print the name and title of each signing officer under his or her signature.