Frontier Funds 424B3 Prospectus supplement

Filed Pursuant to Rule 424(b)(3)
Registration No. 333-155800

LOGO

February 2011 Performance Update

The Frontier Fund Supplement Dated February 28, 2011 to the Prospectus Dated April 30, 2010 and the Supplement to the Prospectus Dated January 28, 2011.

The Frontier Fund Class 1 Original

T H E F RO N T I E R F U N D’ S G O A L : To provide you – the investor – with a managed futures product that, over the long term, provides attractive returns, reduces volatility, and improves the overall performance of your investment portfolio.

February performance for the various Series of The Frontier Fund is detailed below:*


The Frontier Fund Class 1 Original	February 28, 2011	February 28, 2011	NAV /Unit
	MTD	YTD
Balanced Series-1	0.21%	4.35%		$137.68
Balanced Series-1a	0.10%	4.16%		$121.20
Campbell/Graham/Tiverton Series-1	2.34%	3.29%		$114.09
Currency Series-1	-1.96%	-3.23%		$76.53
Long/Short Commodity Series-1	3.35%	10.68%		$146.91
Winton/Graham Series-1	2.17%	1.71%		$121.88
Winton Series-1	1.67%	1.50%		$137.07
Long Only Commodity Series-1	1.97%	3.47%		$97.37
Managed Futures Index Series-1	1.45%	-0.03%		$117.93

Additional information, including monthly rates of return, concerning the aforementioned Series and the Trading Advisor(s) is contained in the Prospectus and the respective Series Appendix to the Prospectus.

The above table sets forth the actual performance for the Class and Series as of February 28, 2011. Actual gross trading performance (gross realized and unrealized gain/loss before deduction for trading commissions and fees, management fees, any other expense, and before addition of interest income) is adjusted for the trading expenses, management fees, initial service fees, on-going service fees, and interest income of the applicable Series.

THIS INSERT MUST BE ACCOMPANIED OR PRECEDED BY THE CURRENT PROSPECTUS OF THE FRONTIER FUND

PAST PERFORMANCE IS NOT INDICATIVE OF FUTURE RESULTS

THE FRONTIER FUND BALANCED SERIES - 1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

February 28, 2011

(Unaudited)


							Current Period
INCOME

Realized trading gain/(loss)							$	9,762,775.22
Unrealized trading gain/(loss)								(7,490,003.76	)
Less: commissions								(308,190.71	)
Less: FCM fees								(102,310.65	)
Foreign currency gain/(loss)								(109,132.10	)
Interest income								(1,753.64	)

Total Income								1,751,384.36

EXPENSES

Management fees								152,334.88
Incentive fees								267,064.92
Broker service fees								689,767.61

Total Expenses								1,109,167.41

Net Income (Loss)							$	642,216.95


STATEMENT OF CHANGES IN NET ASSET VALUE

	Units			Dollars			$’s per unit
Net Asset Value, end of prior month		2,169,758.99763		$	298,122,884.54			137.40
Current month additions		517.69900			72,008.44
Current month redemptions		(21,967.35180	)		(3,050,539.60	)
Net Income (loss) for current month					642,216.95

Net Asset Value, end of current month		2,148,309.34483		$	295,786,570.33			137.68


		Monthly rate of return						0.21	%

To the best of my knowledge and belief, the information

contained in this statement is accurate and complete


		/s/ S. Brent Bales
		S. Brent Bales, Chief Accounting Officer of the Managing Owner
		Equinox Fund Management LLC
		1775 Sherman Street, Suite 2500
		Denver, Colorado 80203
		On Behalf of the Frontier Fund - Balanced Series 1

THE FRONTIER FUND BALANCED SERIES - 1a

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

February 28, 2011

(Unaudited)


							Current Period
INCOME

Realized trading gain/(loss)							$	164,211.88
Unrealized trading gain/(loss)								(121,906.07	)
Less: commissions								(5,315.07	)
Less: FCM fees								(1,760.47	)
Foreign currency gain/(loss)								(1,879.83	)
Interest income								2,646.05

Total Income								35,996.49

EXPENSES

Trading Fee								8,087.23
Management fees								2,627.08
Incentive fees								5,347.18
Broker service fees								11,869.04

Total Expenses								27,930.53

Net Income (Loss)							$	8,065.96


STATEMENT OF CHANGES IN NET ASSET VALUE

	Units			Dollars			$’s per unit
Net Asset Value, end of prior month		43,510.11318		$	5,268,183.31			121.08
Current month additions		6.04818			741.08
Current month redemptions		(1,796.64071	)		(220,524.35	)
Net Income (loss) for current month					8,065.96

Net Asset Value, end of current month		41,719.52065		$	5,056,466.00			121.20


		Monthly rate of return						0.10	%

To the best of my knowledge and belief, the information

contained in this statement is accurate and complete


		/s/ S. Brent Bales
		S. Brent Bales, Chief Accounting Officer of the Managing Owner
		Equinox Fund Management LLC
		1775 Sherman Street, Suite 2500
		Denver, Colorado 80203
		On Behalf of the Frontier Fund - Balanced Series 1a

THE FRONTIER FUND BERKELEY/GRAHAM/TIVERTON SERIES - 1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

February 28, 2011

(Unaudited)


							Current Period
INCOME

Realized trading gain/(loss)							$	2,110,072.65
Unrealized trading gain/(loss)								(160,812.90	)
Less: commissions								(73,825.70	)
Less: FCM fees								(23,784.49	)
Foreign currency gain/(loss)								8,705.86
Interest income								(607.01	)

Total Income								1,859,748.41

EXPENSES

Management fees								184,122.16
Incentive fees								83,407.28
Broker service fees								144,029.77

Total Expenses								411,559.21

Net Income (Loss)							$	1,448,189.20


STATEMENT OF CHANGES IN NET ASSET VALUE

	Units			Dollars			$’s per unit
Net Asset Value, end of prior month		555,702.45271		$	61,950,311.07			111.48
Current month additions		84.42952			9,532.51
Current month redemptions		(5,172.25558	)		(586,550.30	)
Net Income (loss) for current month					1,448,189.20

Net Asset Value, end of current month		550,614.62665		$	62,821,482.48			114.09


		Monthly rate of return						2.34	%

To the best of my knowledge and belief, the information

contained in this statement is accurate and complete


		/s/ S. Brent Bales
		S. Brent Bales, Chief Accounting Officer of the Managing Owner
		Equinox Fund Management LLC
		1775 Sherman Street, Suite 2500
		Denver, Colorado 80203
		On Behalf of the Frontier Fund - Berkeley/Graham/Tiverton Series 1

THE FRONTIER FUND CURRENCY SERIES - 1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

February 28, 2011

(Unaudited)


							Current Period
INCOME

Realized trading gain/(loss)							$	(26,416.90	)
Unrealized trading gain/(loss)								(76,173.46	)
Less: FCM fees								(2,293.49	)
Interest income								2,632.18

Total Income								(102,251.67	)

EXPENSES

Management fees								3,892.53
Incentive fees								—
Broker service fees								13,995.62

Total Expenses								17,888.15

Net Income (Loss)							$	(120,139.82	)


STATEMENT OF CHANGES IN NET ASSET VALUE

	Units			Dollars			$’s per unit
Net Asset Value, end of prior month		79,371.05819		$	6,195,578.42			78.06
Current month additions		67.40769			5,220.36
Current month redemptions		(1,575.71888	)		(121,814.01	)
Net Income (loss) for current month					(120,139.82	)

Net Asset Value, end of current month		77,862.74700		$	5,958,844.95			76.53


		Monthly rate of return						-1.96	%

To the best of my knowledge and belief, the information

contained in this statement is accurate and complete


		/s/ S. Brent Bales
		S. Brent Bales, Chief Accounting Officer of the Managing Owner
		Equinox Fund Management LLC
		1775 Sherman Street, Suite 2500
		Denver, Colorado 80203
		On Behalf of the Frontier Fund - Currency Series 1

THE FRONTIER FUND LONG/SHORT COMMODITY SERIES - 1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

February 28, 2011

(Unaudited)


							Current Period
INCOME

Realized trading gain/(loss)							$	1,445,280.27
Unrealized trading gain/(loss)								42,592.27
Less: commissions								(22,390.23	)
Less: FCM fees								(12,576.79	)
Foreign currency gain/(loss)								(729.62	)
Interest income								39,516.05

Total Income								1,491,691.95

EXPENSES

Management fees								123,305.09
Incentive fees								194,353.47
Broker service fees								76,123.03

Total Expenses								393,781.59

Net Income (Loss)							$	1,097,910.36


STATEMENT OF CHANGES IN NET ASSET VALUE

	Units			Dollars			$’s per unit
Net Asset Value, end of prior month		231,362.34072		$	32,886,482.57			142.14
Current month additions		64.97774			9,548.60
Current month redemptions		(11,846.78429	)		(1,735,837.82	)
Net Income (loss) for current month					1,097,910.36

Net Asset Value, end of current month		219,580.53417		$	32,258,103.71			146.91


		Monthly rate of return						3.35	%


		To the best of my knowledge and belief, the information contained in this statement is accurate and complete
		/s/ S. Brent Bales
		S. Brent Bales, Chief Accounting Officer of the Managing Owner
		Equinox Fund Management LLC
		1775 Sherman Street, Suite 2500
		Denver, Colorado 80203
		On Behalf of the Frontier Fund - Long/Short Commodity Series 1

THE FRONTIER FUND WINTON/GRAHAM SERIES - 1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

February 28, 2011

(Unaudited)


							Current Period
INCOME

Realized trading gain/(loss)							$	643,605.14
Unrealized trading gain/(loss)								805,219.71
Less: commissions								(35,339.20	)
Less: FCM fees								(17,554.94	)
Foreign currency gain/(loss)								173.94
Interest income								11,706.93

Total Income								1,407,811.58

EXPENSES

Management fees								112,263.51
Incentive fees								208,157.24
Broker service fees								106,129.43

Total Expenses								426,550.18

Net Income (Loss)							$	981,261.40


STATEMENT OF CHANGES IN NET ASSET VALUE

	Units			Dollars			$’s per unit
Net Asset Value, end of prior month		380,264.70758		$	45,362,071.48			119.29
Current month additions		102.11239			12,382.22
Current month redemptions		(2,504.44755	)		(301,297.04	)
Net Income (loss) for current month					981,261.40

Net Asset Value, end of current month		377,862.37242		$	46,054,418.06			121.88


		Monthly rate of return						2.17	%


		To the best of my knowledge and belief, the information contained in this statement is accurate and complete

		/s/ S. Brent Bales
		S. Brent Bales, Chief Accounting Officer of the Managing Owner
		Equinox Fund Management LLC
		1775 Sherman Street, Suite 2500
		Denver, Colorado 80203
		On Behalf of the Frontier Fund - Winton/Graham Series 1

THE FRONTIER FUND WINTON SERIES - 1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

February 28, 2011

(Unaudited)


							Current Period
INCOME

Realized trading gain/(loss)							$	1,012,287.55
Unrealized trading gain/(loss)								138,444.91
Less: commissions								(3,112.64	)
Less: FCM fees								(18,839.64	)
Foreign currency gain/(loss)								133.00
Interest income								23,635.72

Total Income								1,152,548.90

EXPENSES

Management fees								84,830.29
Incentive fees								133,197.87
Broker service fees								114,387.82

Total Expenses								332,415.98

Net Income (Loss)							$	820,132.92


STATEMENT OF CHANGES IN NET ASSET VALUE

	Units			Dollars			$’s per unit
Net Asset Value, end of prior month		363,782.25996		$	49,044,733.56			134.82
Current month additions		187.35571			25,558.72
Current month redemptions		(738.23880	)		(101,049.49	)
Net Income (loss) for current month					820,132.92

Net Asset Value, end of current month		363,231.37687		$	49,789,375.71			137.07


		Monthly rate of return						1.67	%


		To the best of my knowledge and belief, the information
		contained in this statement is accurate and complete

		/s/ S. Brent Bales
		S. Brent Bales, Chief Accounting Officer of the Managing Owner
		Equinox Fund Management LLC
		1775 Sherman Street, Suite 2500
		Denver, Colorado 80203
		On Behalf of the Frontier Fund - Winton Series 1

THE FRONTIER FUND LONG ONLY COMMODITY SERIES - 1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

February 28, 2011

(Unaudited)


							Current Period
INCOME

Realized trading gain/(loss)							$	69,979.60
Unrealized trading gain/(loss)								(2,154.48	)
Less: commissions								—
Less: FCM fees								(1,256.34	)
Foreign currency gain/(loss)								—
Interest income								5,441.27

Total Income								72,010.05

EXPENSES

Management fees								3,263.15
Incentive fees								—
Broker service fees								5,100.00

Total Expenses								8,363.15

Net Income (Loss)							$	63,646.90


STATEMENT OF CHANGES IN NET ASSET VALUE

	Units			Dollars			$’s per unit
Net Asset Value, end of prior month		35,435.22150		$	3,383,730.30			95.49
Current month additions		0.99626			92.68
Current month redemptions		(772.07124	)		(72,232.01	)
Net Income (loss) for current month					63,646.90

Net Asset Value, end of current month		34,664.14652		$	3,375,237.87			97.37


		Monthly rate of return						1.97	%


		To the best of my knowledge and belief, the information
		contained in this statement is accurate and complete

		/s/ S. Brent Bales
		S. Brent Bales, Chief Accounting Officer of the Managing Owner
		Equinox Fund Management LLC
		1775 Sherman Street, Suite 2500
		Denver, Colorado 80203
		On Behalf of the Frontier Fund - Long Only Commodity Series 1

THE FRONTIER FUND MANAGED FUTURES INDEX SERIES - 1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

February 28, 2011

(Unaudited)


							Current Period
INCOME

Realized trading gain/(loss)							$	42,095.97
Unrealized trading gain/(loss)								(25,602.54	)
Less: commissions								(239.63	)
Less: FCM fees								(370.91	)
Foreign currency gain/(loss)								126.02
Interest income								1,396.53

Total Income								17,405.44

EXPENSES

Management fees								1,557.92
Incentive fees								—
Broker service fees								1,489.38

Total Expenses								3,047.30

Net Income (Loss)							$	14,358.14


STATEMENT OF CHANGES IN NET ASSET VALUE

	Units			Dollars			$’s per unit
Net Asset Value, end of prior month		8,366.77295		$	972,609.70			116.25
Current month additions		—			—
Current month redemptions		(322.59997	)		(38,326.07	)
Net Income (loss) for current month					14,358.14

Net Asset Value, end of current month		8,044.17298		$	948,641.77			117.93


		Monthly rate of return						1.45	%


		To the best of my knowledge and belief, the information
		contained in this statement is accurate and complete

		/s/ S. Brent Bales
		S. Brent Bales, Chief Accounting Officer of the Managing Owner
		Equinox Fund Management LLC
		1775 Sherman Street, Suite 2500
		Denver, Colorado 80203
		On Behalf of the Frontier Fund - Managed Futures Index Series 1

Frontier Funds (FRFD) 424B3Prospectus supplement