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The 2003 Speed World Challenge season was the 14th season of the Sports Car Club of America's World Challenge series. The series' title sponsor was television network Speed Channel, who televised all the races. Championships were awarded for grand touring and touring cars. It began on March 14 and ran for ten rounds. Randy Pobst and Audi won the championships in GT, and Bill Auberlen and BMW won in Touring Car. The series would head to Puerto Rico for 2003, their first race outside of North America (i.e. the United States and Canada) since 1991 when they went to Mexico.

Schedule

Rnd		Date	Circuit	Supporting	Distance	GT Winning Car	TC Winning Car
GT	TC					GT Winning Driver	TC Winning Driver
1	1	March 14	Sebring International Raceway, Sebring, Florida	American Le Mans Series (12 Hours of Sebring)	63 mi (101 km) (TC) 67 mi (108 km) (GT)	Chevrolet Corvette Z06	BMW 325i
						Phil McClure	Bill Auberlen
2	2	May 17 May 18	Mosport International Raceway, Bowmanville, Ontario	Stand-alone event (with Trans-Am Series)	69 mi (111 km) (TC) 73 mi (117 km) (GT)	Chevrolet Corvette Z06	Acura RSX Type-S
						Phil McClure	Pierre Kleinubing
3		May 24	Lime Rock Park, Lakeville, Connecticut	Stand-alone event (with Trans-Am Series)	64 mi (103 km) (GT)	BMW M3	did not participate
						Bill Auberlen
4	3	May 26			58 mi (93 km) (TC) 61 mi (98 km) (GT)	BMW M3	Acura RSX Type-S
						Bill Auberlen	Pierre Kleinubing
5	4	June 29 June 28	Road Atlanta, Braselton, Georgia	American Le Mans Series (Grand Prix of Atlanta)	64 mi (103 km) (TC) 69 mi (111 km) (GT)	Porsche 911 Cup	BMW 325i
						Mike Fitzgerald	Bill Auberlen
6	7	July 27	Infineon Raceway, Sonoma, California	American Le Mans Series (Grand Prix of Sonoma)	58 mi (93 km) (TC) 63 mi (101 km) (GT)	BMW M3	BMW 325i
						Bill Auberlen	Bill Auberlen
7		August 3	Road America, Elkhart Lake, Wisconsin	Champ Car World Series (Mario Andretti Grand Prix)	73 mi (117 km) (GT)	Porsche 911 Cup	did not participate
						Mike Fitzgerald
	6	August 10	Mid-Ohio Sports Car Course, Lexington, Ohio	Champ Car World Series (Grand Prix of Mid-Ohio)	59 mi (95 km) (TC)	did not participate	Acura RSX Type-S
							Bob Endicott
	7	August 23	Road America, Elkhart Lake, Wisconsin	American Le Mans Series (Road America 500)	69 mi (111 km) (TC)	did not participate	Nissan Sentra SE-R
							Peter Cunningham
8	8	September 8 September 7	Mazda Raceway Laguna Seca, Monterey, California	American Le Mans Series (Monterey Sports Car Championships)	58 mi (93 km) (TC) 63 mi (101 km) (GT)	Dodge Viper	Mazda Protege ES
						Paul Mumford	Jeff Altenburg
9	9	October 17	Road Atlanta, Braselton, Georgia	American Le Mans Series (Petit Le Mans)	64 mi (103 km) (TC) 69 mi (111 km) (GT)	Audi RS6	Acura RSX Type-S
						Randy Pobst	Pierre Kleinubing
10	10	October 26	Isla Grande Airport, San Juan, Puerto Rico	Stand-alone event (with Trans-Am Series)	50 mi (80 km) (TC) 58 mi (93 km) (GT)	Audi RS6	BMW 325i
						Randy Pobst	Bill Auberlen

References

• "2003 SCCA World Challenge Box Scores" (PDF). Sports Car Club of America. Archived from the original (PDF) on 24 April 2012. Retrieved 27 September 2011.

1. Box scores, p. 21–25
2. Box scores, p. 1–20

• GT World Challenge America
• 2003 in American motorsport