IROC XII

IROC XII was the twelfth year of IROC competition took place in 1988. It saw the use of the Chevrolet Camaro in all races, and continued the format introduced in IROC VIII. Race one took place on the Daytona International Speedway, race two took place at Riverside International Raceway, race three ran at Michigan International Speedway, and race four concluded the year at Watkins Glen International. Al Unser Jr. won his second championship and $211,900.

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

Rank	Driver	Points	Winnings	Series
1	Al Unser Jr.	66	$211,900	CART PPG IndyCar World Series 3rd in 1987 IndyCar points 1987 24 Hours of Daytona GTP winner IROC X Champion
2	Terry Labonte	55	$95,000	NASCAR Winston Cup Series 3rd in 1987 Winston Cup points
3	Scott Pruett	51	$72,900	SCCA Trans-Am Series 1987 Trans-Am Champion 1987 24 Hours of Daytona GTO winner
4	Bill Elliott	46	$58,900	NASCAR Winston Cup Series 2nd in 1987 Winston Cup points 1987 24 Hours of Daytona GTO winner
5	Dale Earnhardt 1	45	$51,000	NASCAR Winston Cup Series 1987 Winston Cup Series Champion
6	Geoff Bodine 1	45	$49,500	NASCAR Winston Cup Series Defending IROC Champion
7	Al Holbert	39	$35,000	IMSA Camel GTP 1987 24 Hours of Daytona GTP winner 1987 24 Hours of Le Mans winner 4th in 1987 IMSA GTP points
8	Al Unser	38	$34,000	CART PPG IndyCar World Series 1987 Indianapolis 500 winner IROC V Champion
9	Chip Robinson	36	$38,000	IMSA Camel GTP 1987 Camel GTP Champion 1987 24 Hours of Daytona GTP winner
10	Chris Cord	26	$32,000	IMSA Camel GTO 1987 Camel GTO Champion
11	Bobby Rahal	24	$31,000	CART PPG IndyCar World Series & IMSA Camel GTP 1987 IndyCar Champion 1987 12 Hours of Sebring GTP winner 5th in 1987 Camel GTP points
12	Roberto Guerrero	19	$30,400	CART PPG IndyCar World Series 4th in 1987 IndyCar points