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 Original

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 Original	March 31, 2013			March 31, 2013			NAV / Unit
	MTD			YTD
Balanced Series-1		0.03	%		-1.82	%	$	114.20
Frontier Select Series-1		2.41	%		4.07	%	$	81.86
Currency Series-1		0.84	%		-1.65	%	$	55.97
Frontier Heritage Series-1		2.92	%		7.49	%	$	101.63
Winton Series-1		2.64	%		4.43	%	$	136.53

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 BALANCED SERIES—1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	4,216,700.63
Unrealized trading gain (loss)		(3,478,560.65	)
Less: Commissions		(133,637.72	)
Less: Trading Fee paid to Managing Owner		(78,216.62	)
Interest income		10,909.81
Total Income		537,195.45
EXPENSES
Broker service fees		312,860.51
Incentive fees		72,171.65
Management fees		109,478.14
Total Expenses		494,510.30
Net Income (Loss)	$	42,685.15

Statement of Changes in Net Asset Value

	Units			Dollars			$’s per unit
Net asset value, beginning of month		1,156,463.27880		$	132,034,991.73		$	114.17
Current month additions		210.11851			24,148.78
Current month redemptions		(22,148.17211	)		(2,534,495.25	)
Net income (loss) for current month					42,685.15			0.03
Net asset value, end of current month		1,134,525.23000		$	129,567,330.41		$	114.20
		Monthly rate of return						0.03	%

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 FRONTIER SELECT SERIES—1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	1,161,695.08
Unrealized trading gain (loss)		(553,670.78	)
Less: Commissions		(9,718.89	)
Less: Trading Fee paid to Managing Owner		(12,885.66	)
Interest income		24,373.29
Total Income		609,793.04
EXPENSES
Broker service fees		51,539.29
Incentive fees		0.00
Management fees		43,778.80
Total Expenses		95,318.09
Net Income (Loss)	$	514,474.95

Statement of Changes in Net Asset Value

	Units			Dollars			$’s per unit
Net asset value, beginning of month		268,885.62896		$	21,493,299.49		$	79.93
Current month additions		16.56629			1,345.89
Current month redemptions		(7,572.77658	)		(615,961.72	)
Net income (loss) for current month					514,474.95			1.93
Net asset value, end of current month		261,329.42000		$	21,393,158.61		$	81.86
		Monthly rate of return						2.41	%

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 SELECT SERIES—1

THE FRONTIER FUND CURRENCY SERIES—1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	0.00
Unrealized trading gain (loss)		7,030.88
Less: Commissions		0.00
Less: Trading Fee paid to Managing Owner		(476.14	)
Interest income		2,011.85
Total Income		8,566.59
EXPENSES
Broker service fees		1,904.65
Incentive fees		0.00
Management fees		0.00
Total Expenses		1,904.65
Net Income (Loss)	$	6,661.94

Statement of Changes in Net Asset Value

	Units			Dollars			$’s per unit
Net asset value, beginning of month		14,619.80661		$	811,395.47		$	55.50
Current month additions		3.08220			170.24
Current month redemptions		(525.45711	)		(29,212.56	)
Net income (loss) for current month					6,661.94			0.47
Net asset value, end of current month		14,097.43000		$	789,015.09		$	55.97
		Monthly rate of return						0.84	%

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 FRONTIER HERITAGE SERIES—1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	1,400,457.53
Unrealized trading gain (loss)		(858,091.38	)
Less: Commissions		(4,298.32	)
Less: Trading Fee paid to Managing Owner		(9,841.64	)
Interest income		9,262.32
Total Income		537,488.51
EXPENSES
Broker service fees		39,365.27
Incentive fees		0.00
Management fees		24,929.91
Total Expenses		64,295.18
Net Income (Loss)	$	473,193.33

Statement of Changes in Net Asset Value

	Units			Dollars			$’s per unit
Net asset value, beginning of month		163,913.20000		$	16,185,486.67		$	98.74
Current month additions		34.72468			3,538.70
Current month redemptions		(2,952.28145	)		(300,037.55	)
Net income (loss) for current month					473,193.33			2.89
Net asset value, end of current month		160,995.64000		$	16,362,181.15		$	101.63
		Monthly rate of return						2.92	%

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 HERITAGE SERIES—1

THE FRONTIER FUND WINTON SERIES—1

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	2,108,922.13
Unrealized trading gain (loss)		(1,181,070.93	)
Less: Commissions		(3,883.08	)
Less: Trading Fee paid to Managing Owner		(18,215.54	)
Interest income		25,097.01
Total Income		930,849.59
EXPENSES
Broker service fees		72,857.34
Incentive fees		0.00
Management fees		62,327.70
Total Expenses		135,185.04
Net Income (Loss)	$	795,664.55

Statement of Changes in Net Asset Value

	Units			Dollars			$’s per unit
Net asset value, beginning of month		226,804.43279		$	30,169,499.17		$	133.02
Current month additions		99.92236			13,730.61
Current month redemptions		(5,245.24723	)		(716,128.72	)
Net income (loss) for current month					795,664.55			3.51
Net asset value, end of current month		221,659.11000		$	30,262,765.61		$	136.53
		Monthly rate of return						2.64	%

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 BALANCED SERIES

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	5,915,112.67
Unrealized trading gain (loss)		(4,877,468.37	)
Less: Commissions		(187,670.57	)
Less: Trading Fee paid to Managing Owner		(109,851.42	)
Interest income		20,365.66
Total Income		760,487.97
EXPENSES
Trading fees		0.00
Broker service fees		312,860.51
Incentive fees		101,564.60
Management fees		153,754.14
Total Expenses		568,179.25
Net Income (Loss)	$	192,308.72

Statement of Changes in Net Asset Value

	Units			Dollars			Aggregate Net Asset Value per unit*
Net asset value, beginning of month		1,524,932.41239		$	185,409,118.49		$	121.59
Current month additions		210.11851			24,148.78
Current month redemptions		(28,606.59555	)		(3,409,740.49	)
Net income (loss) for current month					192,308.72			0.17
Net asset value, end of current month		1,496,535.94000		$	182,215,835.50		$	121.76
		Monthly rate of return						0.14	%

* 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—BALANCED SERIES

THE FRONTIER FUND FRONTIER SELECT SERIES

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	1,317,903.34
Unrealized trading gain (loss)		(627,679.63	)
Less: Commissions		(11,031.75	)
Less: Trading Fee paid to Managing Owner		(14,634.23	)
Interest income		27,680.96
Total Income		692,238.69
EXPENSES
Trading fees		0.00
Broker service fees		51,539.29
Incentive fees		0.00
Management fees		49,712.26
Total Expenses		101,251.55
Net Income (Loss)	$	590,987.14

Statement of Changes in Net Asset Value

	Units			Dollars			Aggregate Net Asset Value per unit*
Net asset value, beginning of month		297,238.18167		$	24,375,456.33		$	82.01
Current month additions		16.56629			1,345.89
Current month redemptions		(7,697.49552	)		(628,924.21	)
Net income (loss) for current month					590,987.14			2.05
Net asset value, end of current month		289,557.25000		$	24,338,865.15		$	84.06
		Monthly rate of return						2.50	%

* 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 SELECT SERIES

THE FRONTIER FUND CURRENCY SERIES

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	0.00
Unrealized trading gain (loss)		7,449.35
Less: Commissions		0.00
Less: Trading Fee paid to Managing Owner		(504.19	)
Interest income		2,130.38
Total Income		9,075.54
EXPENSES
Trading fees		0.00
Broker service fees		1,904.65
Incentive fees		0.00
Management fees		0.00
Total Expenses		1,904.65
Net Income (Loss)	$	7,170.89

Statement of Changes in Net Asset Value

	Units			Dollars			Aggregate Net Asset Value per unit*
Net asset value, beginning of month		15,275.59929		$	858,275.37		$	56.19
Current month additions		3.08220			170.24
Current month redemptions		(525.45711	)		(29,212.56	)
Net income (loss) for current month					7,170.89			0.50
Net asset value, end of current month		14,753.22000		$	836,403.94		$	56.69
		Monthly rate of return						0.90	%

* 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—CURRENCY SERIES

THE FRONTIER FUND FRONTIER HERITAGE SERIES

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	1,725,317.81
Unrealized trading gain (loss)		(1,056,484.52	)
Less: Commissions		(5,296.85	)
Less: Trading Fee paid to Managing Owner		(12,121.98	)
Interest income		11,408.87
Total Income		662,823.33
EXPENSES
Trading fees		0.00
Broker service fees		39,365.27
Incentive fees		0.00
Management fees		30,715.19
Total Expenses		70,080.46
Net Income (Loss)	$	592,742.87

Statement of Changes in Net Asset Value

	Units			Dollars			Aggregate Net Asset Value per unit*
Net asset value, beginning of month		193,778.14775		$	19,967,474.44		$	103.04
Current month additions		34.72468			3,538.70
Current month redemptions		(3,575.51729	)		(381,149.29	)
Net income (loss) for current month					592,742.87			3.05
Net asset value, end of current month		190,237.35000		$	20,182,606.72		$	106.09
		Monthly rate of return						2.96	%

* 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 HERITAGE SERIES

THE FRONTIER FUND WINTON SERIES

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

March 31, 2013

(Unaudited)

	Current Period
INCOME
Realized trading gain (loss)	$	2,840,364.45
Unrealized trading gain (loss)		(1,591,028.35	)
Less: Commissions		(5,236.92	)
Less: Trading Fee paid to Managing Owner		(24,583.54	)
Interest income		33,870.61
Total Income		1,253,386.25
EXPENSES
Trading fees		0.00
Broker service fees		72,857.34
Incentive fees		0.00
Management fees		84,117.69
Total Expenses		156,975.03
Net Income (Loss)	$	1,096,411.22

Statement of Changes in Net Asset Value

	Units			Dollars			Aggregate Net Asset  Value per unit*
Net asset value, beginning of month		291,268.08143		$	40,602,939.62		$	139.40
Current month additions		99.92236			13,730.61
Current month redemptions		(5,285.88283	)		(722,890.30	)
Net income (loss) for current month					1,096,411.22			3.88
Net asset value, end of current month		286,082.12000		$	40,990,191.15		$	143.28
		Monthly rate of return						2.78	%

* 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—WINTON SERIES