IROC XXI was the twenty-first season of the International Race of Champions, which started on February 17, 1997. The series used identically prepared Pontiac Firebird Trans Am race cars, and contested races at Daytona International Speedway, Charlotte Motor Speedway, California Speedway, and Michigan International Speedway. Mark Martin won $225,000 and the IROC championship, his second straight win and third in four seasons.

The roster of drivers and final points standings were as follows:^[1]

More information Position, Driver ...

Position	Driver	Points	Winnings	Series
1	Mark Martin	72	$225,000	NASCAR Winston Cup
2	Robby Gordon	63	$100,000	CART, SCORE
3	Randy LaJoie	58	$60,000	NASCAR Busch Series
4	Al Unser Jr.	57	$50,000	CART
5	Terry Labonte	43	$45,000	NASCAR Winston Cup
6	Jeff Gordon	39	$40,000	NASCAR Winston Cup
7	Dale Earnhardt	35	$40,000	NASCAR Winston Cup
8	Dale Jarrett	34	$40,000	NASCAR Winston Cup
9	Tommy Kendall	34	$40,000	SCCA Trans-Am Series
10	Jimmy Vasser	30	$40,000	CART
11	Darrell Waltrip	18	$40,000	NASCAR Winston Cup
12	Alex Zanardi	17	$40,000	CART

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1. Bobby Labonte drove for Robby Gordon in Race 3.