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

May 2010 Performance Update

The Frontier Fund Supplement Dated May 31, 2010 to Prospectus Dated April 30, 2010

The Frontier Fund Class 2 Original

T H E    F R O 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.

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

The Frontier Fund Class 2 Original	May 31, 2010	May 31, 2010	NAV / Unit
	MTD	YTD
Balanced Series-2	-0.76%	3.08%	$	143.29
Balanced Series-2a	-0.83%	2.76%	$	120.85
Campbell/Graham/Tiverton Series-2	-0.33%	-1.55%	$	119.21
Currency Series-2	2.02%	5.12%	$	96.01
Long/Short Commodity Series-2	-4.00%	-1.67%	$	125.37
Winton/Graham Series-2	-0.53%	1.95%	$	130.89
Winton Series-2	-0.76%	6.99%	$	139.20
Long Only Commodity Series-2	-8.13%	-10.20%	$	81.09
Managed Futures Index Series-2	4.95%	2.06%	$	123.77

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 May 31, 2010. 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 - 2

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

May 31, 2010

(Unaudited)

						Current Period
INCOME
Realized trading gain/(loss)						$	(424,145.45	)
Unrealized trading gain/(loss)							271,084.91
Less: commissions							(97,888.85	)
Less: FCM fees							(24,498.58	)
Foreign currency gain/(loss)							(36,979.32	)
Interest income							3,345.49
Total Income							(309,081.80	)
EXPENSES
Management fees							46,992.77
Incentive fees							224,773.39
Total Expenses							271,766.16
Net Income (Loss)						$	(580,847.96	)
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units		Dollars			$’s per unit
Net Asset Value, end of prior month	532,778.95973		$	76,925,553.41			144.39
Current month additions	—			—
Current month redemptions	(3,305.63576	)		(474,049.86	)
Net Income (loss) for current month				(580,847.96	)
Net Asset Value, end of current month	529,473.32397		$	75,870,655.59			143.29
	Monthly rate of return						-0.76	%

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

1660 Lincoln Street, Suite 100

Denver, Colorado 80264

On Behalf of the Frontier Fund - Balanced Series 2

THE FRONTIER FUND BALANCED SERIES - 2a

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

May 31, 2010

(Unaudited)

					Current Period
INCOME
Realized trading gain/(loss)					$	(18,244.28	)
Unrealized trading gain/(loss)						11,723.70
Less: commissions						(4,207.09	)
Less: FCM fees						(1,052.08	)
Foreign currency gain/(loss)						(1,586.24	)
Interest income						3,028.13
Total Income						(10,337.86	)
EXPENSES
Trading Fee						5,333.19
Management fees						2,019.84
Incentive fees						9,660.16
Total Expenses						17,013.19
Net Income (Loss)					$	(27,351.05	)
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units	Dollars			$’s per unit
Net Asset Value, end of prior month	27,044.16933	$	3,295,507.96			121.86
Current month additions	—		—
Current month redemptions	—		—
Net Income (loss) for current month			(27,351.05	)
Net Asset Value, end of current month	27,044.16933	$	3,268,156.91			120.85
	Monthly rate of return					-0.83	%

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

1660 Lincoln Street, Suite 100

Denver, Colorado 80264

On Behalf of the Frontier Fund - Balanced Series 2a

THE FRONTIER FUND CAMPBELL/GRAHAM/TIVERTON SERIES - 2

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

May 31, 2010

(Unaudited)

						Current Period
INCOME
Realized trading gain/(loss)						$	(86,536.30	)
Unrealized trading gain/(loss)							89,431.92
Less: commissions							(4,365.54	)
Less: FCM fees							(3,305.58	)
Foreign currency gain/(loss)							(5,243.35	)
Interest income							—
Total Income							(10,018.85	)
EXPENSES
Management fees							21,713.96
Incentive fees							—
Total Expenses							21,713.96
Net Income (Loss)						$	(31,732.81	)
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units		Dollars			$’s per unit
Net Asset Value, end of prior month	74,481.21113		$	8,908,317.39			119.60
Current month additions	—			—
Current month redemptions	(1,471.80935	)		(172,902.46	)
Net Income (loss) for current month				(31,732.81	)
Net Asset Value, end of current month	73,009.40178		$	8,703,682.12			119.21
	Monthly rate of return						-0.33	%

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

1660 Lincoln Street, Suite 100

Denver, Colorado 80264

On Behalf of the Frontier Fund - Campbell/Graham/Tiverton Series 2

THE FRONTIER FUND CURRENCY SERIES - 2

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

May 31, 2010

(Unaudited)

				Current Period
INCOME
Realized trading gain/(loss)				$	55,292.19
Unrealized trading gain/(loss)					224,131.40
Net change in inter-series payables					(255,205.31	)
Less: FCM fees					(5,192.86	)
Interest income					6,491.73
Total Income					25,517.15
EXPENSES
Management fees					8,146.38
Incentive fees					—
Total Expenses					8,146.38
Net Income (Loss)				$	17,370.77
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units	Dollars		$’s per unit
Net Asset Value, end of prior month	9,141.49485	$	860,295.56		94.11
Current month additions	—		—
Current month redemptions	—		—
Net Income (loss) for current month			17,370.77
Net Asset Value, end of current month	9,141.49485	$	877,666.33		96.01
	Monthly rate of return				2.02	%

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

1660 Lincoln Street, Suite 100

Denver, Colorado 80264

On Behalf of the Frontier Fund - Currency Series 2

THE FRONTIER FUND LONG/SHORT COMMODITY SERIES - 2

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

May 31, 2010

(Unaudited)

						Current Period
INCOME
Realized trading gain/(loss)						$	(421,946.14	)
Unrealized trading gain/(loss)							(75,261.17	)
Less: commissions							(31,087.45	)
Less: FCM fees							(5,406.26	)
Foreign currency gain/(loss)							179.36
Interest income							22,292.42
Total Income							(511,229.24	)
EXPENSES
Management fees							54,210.46
Incentive fees							20,798.96
Total Expenses							75,009.42
Net Income (Loss)						$	(586,238.66	)
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units		Dollars			$’s per unit
Net Asset Value, end of prior month	113,271.09388		$	14,792,353.66			130.59
Current month additions	—			—
Current month redemptions	(2,301.61071	)		(293,941.01	)
Net Income (loss) for current month				(586,238.66	)
Net Asset Value, end of current month	110,969.48317		$	13,912,173.99			125.37
	Monthly rate of return						-4.00	%

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

1660 Lincoln Street, Suite 100

Denver, Colorado 80264

On Behalf of the Frontier Fund - Long/Short Commodity Series 2

THE FRONTIER FUND WINTON/GRAHAM SERIES - 2

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

May 31, 2010

(Unaudited)

						Current Period
INCOME
Realized trading gain/(loss)						$	7,889.58
Unrealized trading gain/(loss)							(34,282.93	)
Less: commissions							(6,931.82	)
Less: FCM fees							(4,667.68	)
Foreign currency gain/(loss)							(736.55	)
Interest income							3,932.64
Total Income							(34,796.76	)
EXPENSES
Management fees							31,509.69
Incentive fees							—
Total Expenses							31,509.69
Net Income (Loss)						$	(66,306.45	)
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units		Dollars			$’s per unit
Net Asset Value, end of prior month	94,587.83795		$	12,446,295.27			131.58
Current month additions	—			—
Current month redemptions	(632.31328	)		(81,821.65	)
Net Income (loss) for current month				(66,306.45	)
Net Asset Value, end of current month	93,955.52467		$	12,298,167.17			130.89
	Monthly rate of return						-0.53	%

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

1660 Lincoln Street, Suite 100

Denver, Colorado 80264

On Behalf of the Frontier Fund - Winton/Graham Series 2

THE FRONTIER FUND WINTON SERIES - 2

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

May 31, 2010

(Unaudited)

						Current Period
INCOME
Realized trading gain/(loss)						$	27,716.91
Unrealized trading gain/(loss)							(85,539.97	)
Less: commissions							(1,617.22	)
Less: FCM fees							(4,021.38	)
Foreign currency gain/(loss)							580.88
Interest income							3,379.13
Total Income							(59,501.65	)
EXPENSES
Management fees							21,651.69
Incentive fees							—
Total Expenses							21,651.69
Net Income (Loss)						$	(81,153.34	)
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units		Dollars			$’s per unit
Net Asset Value, end of prior month	76,202.37862		$	10,688,508.99			140.26
Current month additions	—			—
Current month redemptions	(42.14275	)		(5,821.71	)
Net Income (loss) for current month				(81,153.34	)
Net Asset Value, end of current month	76,160.23587		$	10,601,533.94			139.20
	Monthly rate of return						-0.76	%

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

1660 Lincoln Street, Suite 100

Denver, Colorado 80264

On Behalf of the Frontier Fund - Winton Series 2

THE FRONTIER FUND LONG ONLY COMMODITY SERIES - 2

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

May 31, 2010

(Unaudited)

						Current Period
INCOME
Realized trading gain/(loss)						$	(73,996.13	)
Unrealized trading gain/(loss)							1,002.42
Less: commissions							—
Less: FCM fees							(310.81	)
Foreign currency gain/(loss)							—
Interest income							1,391.42
Total Income							(71,913.10	)
EXPENSES
Management fees							797.61
Incentive fees
Total Expenses							797.61
Net Income (Loss)						$	(72,710.71	)
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units		Dollars			$’s per unit
Net Asset Value, end of prior month	10,322.27976		$	911,147.56			88.27
Current month additions	—			—
Current month redemptions	(554.91079	)		(46,400.52	)
Net Income (loss) for current month				(72,710.71	)
Net Asset Value, end of current month	9,767.36897		$	792,036.33			81.09
	Monthly rate of return						-8.13	%

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

1660 Lincoln Street, Suite 100

Denver, Colorado 80264

On Behalf of the Frontier Fund - Long Only Commodity Series 2

THE FRONTIER FUND MANAGED FUTURES INDEX SERIES - 2

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

May 31, 2010

(Unaudited)

						Current Period
INCOME
Realized trading gain/(loss)						$	122,264.87
Unrealized trading gain/(loss)							74,026.98
Less: commissions							(1,566.12	)
Less: FCM fees							(1,483.77	)
Foreign currency gain/(loss)							(595.97	)
Interest income							685.52
Total Income							193,331.51
EXPENSES
Management fees							6,564.47
Incentive fees							—
Total Expenses							6,564.47
Net Income (Loss)						$	186,767.04
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units		Dollars			$’s per unit
Net Asset Value, end of prior month	31,909.44420		$	3,763,350.68			117.94
Current month additions	—			—
Current month redemptions	(132.33598	)		(16,997.07	)
Net Income (loss) for current month				186,767.04
Net Asset Value, end of current month	31,777.10822		$	3,933,120.65			123.77
	Monthly rate of return						4.95	%

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

1660 Lincoln Street, Suite 100

Denver, Colorado 80264

On Behalf of the Frontier Fund - Managed Futures Index Series 2