<Page>
Exhibit 99.CERT
CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE INVESTMENT COMPANY ACT OF 1940
I, George C.W. Gatch, certify that:
1. I have reviewed this report on Form N-CSR of the JPMorgan Fleming
International Equity Fund, JPMorgan Tax Aware Large Cap Growth Fund and JPMorgan
Tax Aware Large Cap Value Fund (the "Funds"), each a series of J.P. Morgan
Mutual Fund Select Group (the "Registrant");
2. Based on my knowledge, this report does not contain any untrue statement of a
material fact or omit to state a material fact necessary to make the statements
made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;
3. Based on my knowledge, the financial statements and other information
included in this report, fairly present in all material respects the financial
condition, results of operations, changes in net assets, and cash flows (if the
financial statements are required to include a statement of cash flows) of the
Funds as of, and for, the periods presented in this report;
4. The Registrant's other certifying officer(s) and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Rule 30a-3(c) under the Investment Company Act of 1940) for the Funds and have:
a) Designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
Funds, including its consolidated subsidiaries, is made known to us
by others within those entities, particularly during the period in
which this report is being prepared;
b) Evaluated the effectiveness of the Funds' disclosure controls and
procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of a
date within 90 days prior to the filing date of this report based on
such evaluation; and
c) Disclosed in this report any change in the Funds' internal control
over financial reporting that occurred during the Funds' most recent
fiscal half-year (the Funds' second fiscal half-year in the case of
an annual report) that has materially affected, or is reasonably
likely to materially affect, the Funds' internal control over
financial reporting; and
5. The Registrant's other certifying officer(s) and I have disclosed to the
Registrant's auditors and the audit committee of the Registrant's board of
directors (or persons performing the equivalent functions):
a) All significant deficiencies and material weaknesses in the design
or operation of internal control over financial reporting which are
reasonably likely to adversely affect the Funds' ability to record,
process, summarize, and report financial information; and
b) Any fraud, whether or not material, that involves management or
other employees who have a significant role in the Funds' internal
control over financial reporting.
/s/ George C.W. Gatch
- -----------------------
George C.W. Gatch
President
June 23, 2004
- -----------------------
Date
<Page>
CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE INVESTMENT COMPANY ACT OF 1940
I, Patricia A. Maleski, certify that:
1. I have reviewed this report on Form N-CSR of the JPMorgan Fleming
International Equity Fund, JPMorgan Tax Aware Large Cap Growth Fund and JPMorgan
Tax Aware Large Cap Value Fund (the "Funds"), each a series of J.P. Morgan
Mutual Fund Select Group (the "Registrant");
2. Based on my knowledge, this report does not contain any untrue statement of a
material fact or omit to state a material fact necessary to make the statements
made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;
3. Based on my knowledge, the financial statements and other information
included in this report, fairly present in all material respects the financial
condition, results of operations, changes in net assets, and cash flows (if the
financial statements are required to include a statement of cash flows) of the
Funds as of, and for, the periods presented in this report;
4. The Registrant's other certifying officer(s) and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Rule 30a-3(c) under the Investment Company Act of 1940) for the Funds and have:
a) Designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
Funds, including its consolidated subsidiaries, is made known to us
by others within those entities, particularly during the period in
which this report is being prepared;
b) Evaluated the effectiveness of the Funds' disclosure controls and
procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of a
date within 90 days prior to the filing date of this report based on
such evaluation; and
c) Disclosed in this report any change in the Funds' internal control
over financial reporting that occurred during the Funds' most recent
fiscal half-year (the Funds' second fiscal half-year in the case of
an annual report) that has materially affected, or is reasonably
likely to materially affect, the Funds' internal control over
financial reporting; and
5. The Registrant's other certifying officer(s) and I have disclosed to the
Registrant's auditors and the audit committee of the Registrant's board of
directors (or persons performing the equivalent functions):
a) All significant deficiencies and material weaknesses in the design
or operation of internal control over financial reporting which are
reasonably likely to adversely affect the Funds' ability to record,
process, summarize, and report financial information; and
b) Any fraud, whether or not material, that involves management or
other employees who have a significant role in the Funds' internal
control over financial reporting.
/s/ Patricia A. Maleski
- -------------------------
Patricia A. Maleski
Treasurer
June 22, 2004
- -------------------------
Date