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

March 2013 Performance Update

The Frontier Fund Supplement Dated March 31, 2013 to Prospectus Dated January 31, 2013.

The Frontier Fund Class 1 New

THE FRONTIER FUND’S GOAL: 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.

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

The Frontier Fund Class 1 New	March 31, 2013 MTD			March 31, 2013 YTD			NAV / Unit
Frontier Diversified Series-1		0.46	%		-1.26	%	$	93.21
Frontier Long/Short Commodity Series-1a		1.31	%		-0.56	%	$	107.97
Frontier Masters Series-1		1.94	%		0.49	%	$	101.61

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 March 31, 2013. 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 DIVERSIFIED SERIES—1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	2,516,047.44
Unrealized trading gain (loss)		(1,967,687.94	)
Less: Commissions		(59,453.91	)
Less: Trading Fee paid to Managing Owner		(103,483.55	)
Interest income		75,892.50
Total Income		461,314.54
EXPENSES
Broker service fees		87,311.81
Incentive fees		51,903.02
Management fees		66,328.75
Total Expenses		205,543.58
Net Income (Loss)	$	255,770.96

Statement of Changes in Net Asset Value

	Units			Dollars			$’s per unit
Net asset value, beginning of month		596,796.40643		$	55,375,688.49		$	92.79
Current month additions		1,205.94882			112,311.70
Current month redemptions		(17,047.16058	)		(1,592,433.16	)
Net income (loss) for current month					255,770.96			0.42
Net asset value, end of current month		580,955.19000		$	54,151,337.99		$	93.21
		Monthly rate of return						0.46	%

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—DIVERSIFIED SERIES—1

THE FRONTIER FUND LONG/SHORT COMMODITY SERIES—1a

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	311,004.21
Unrealized trading gain (loss)		22,928.18
Less: Commissions		(16,760.92	)
Less: Trading Fee paid to Managing Owner		(33,792.00	)
Interest income		33,440.71
Total Income		316,820.18
EXPENSES
Broker service fees		28,508.70
Incentive fees		0.00
Management fees		52,102.78
Total Expenses		80,611.48
Net Income (Loss)	$	236,208.70

Statement of Changes in Net Asset Value

	Units			Dollars			$’s per unit
Net asset value, beginning of month		168,197.55103		$	17,925,650.68		$	106.57
Current month additions		562.32188			60,898.02
Current month redemptions		(5,554.41466	)		(600,766.13	)
Net income (loss) for current month					236,208.70			1.40
Net asset value, end of current month		163,205.46000		$	17,621,991.27		$	107.97
		Monthly rate of return						1.31	%

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—1a

THE FRONTIER FUND MASTERS SERIES—1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	1,033,686.91
Unrealized trading gain (loss)		(231,279.73	)
Less: Commissions		(15,671.83	)
Less: Trading Fee paid to Managing Owner		(63,935.21	)
Interest income		48,892.70
Total Income		771,692.84
EXPENSES
Broker service fees		53,941.56
Incentive fees		0.00
Management fees		70,218.51
Total Expenses		124,160.07
Net Income (Loss)	$	647,532.77

Statement of Changes in Net Asset Value

	Units			Dollars			$’s per unit
Net asset value, beginning of month		336,655.64900		$	33,555,662.50		$	99.67
Current month additions		3,157.09538			318,874.19
Current month redemptions		(5,743.06422	)		(578,700.48	)
Net income (loss) for current month					647,532.77			1.94
Net asset value, end of current month		334,069.68000		$	33,943,368.98		$	101.61
		Monthly rate of return						1.94	%

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—MASTERS SERIES—1

THE FRONTIER FUND FRONTIER DIVERSIFIED SERIES

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	5,003,125.30
Unrealized trading gain (loss)		(3,912,636.58	)
Less: Commissions		(118,347.62	)
Less: Trading Fee paid to Managing Owner		(206,017.10	)
Interest income		151,087.89
Total Income		917,211.89
EXPENSES
Trading fees		0.00
Broker service fees		98,125.59
Incentive fees		103,758.97
Management fees		132,046.82
Total Expenses		333,931.38
Net Income (Loss)	$	583,280.51

Statement of Changes in Net Asset Value

	Units			Dollars			Aggregate Net Asset Value per unit*
Net asset value, beginning of month		1,147,710.64109		$	109,942,453.96		$	95.79
Current month additions		2,406.73852			231,811.70
Current month redemptions		(27,708.21522	)		(2,657,224.77	)
Net income (loss) for current month					583,280.51			0.52
Net asset value, end of current month		1,122,409.16000		$	108,100,321.40		$	96.31
		Monthly rate of return						0.54	%

* Please see your specific Class Statement of Income (Loss) for your specific unit value.

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—FRONTIER DIVERSIFIED SERIES

THE FRONTIER FUND FRONTIER LONG/SHORT COMMODITY SERIES

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	879,248.96
Unrealized trading gain (loss)		66,182.30
Less: Commissions		(47,423.61	)
Less: Trading Fee paid to Managing Owner		(66,656.58	)
Interest income		94,601.70
Total Income		925,952.77
EXPENSES
Trading fees		0.00
Broker service fees		30,561.55
Incentive fees		0.00
Management fees		198,168.58
Total Expenses		228,730.13
Net Income (Loss)	$	697,222.64

Statement of Changes in Net Asset Value

	Units			Dollars			Aggregate Net Asset Value per unit*
Net asset value, beginning of month		416,422.14237		$	50,790,599.92		$	121.97
Current month additions		618.54985			67,398.02
Current month redemptions		(14,753.91487	)		(1,854,006.61	)
Net income (loss) for current month					697,222.64			1.58
Net asset value, end of current month		402,286.78000		$	49,701,213.97		$	123.55
		Monthly rate of return						1.29	%

* Please see your specific Class Statement of Income (Loss) for your specific unit value.

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—FRONTIER LONG/SHORT COMMODITY SERIES

THE FRONTIER FUND FRONTIER MASTERS SERIES

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	1,558,150.81
Unrealized trading gain (loss)		(358,157.29	)
Less: Commissions		(23,430.90	)
Less: Trading Fee paid to Managing Owner		(95,460.02	)
Interest income		72,995.82
Total Income		1,154,098.42
EXPENSES
Trading fees		0.00
Broker service fees		57,266.21
Incentive fees		0.00
Management fees		104,832.47
Total Expenses		162,098.68
Net Income (Loss)	$	991,999.74

Statement of Changes in Net Asset Value

	Units			Dollars			Aggregate Net Asset Value per unit*
Net asset value, beginning of month		495,051.16932		$	50,406,484.92		$	101.82
Current month additions		4,718.45843			486,557.30
Current month redemptions		(19,179.25188	)		(2,029,882.86	)
Net income (loss) for current month					991,999.74			1.92
Net asset value, end of current month		480,590.38000		$	49,855,159.10		$	103.74
		Monthly rate of return						1.88	%

* Please see your specific Class Statement of Income (Loss) for your specific unit value.

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—FRONTIER MASTERS SERIES