IROC

Seasons

1974

1. Riverside International Raceway
2. Riverside International Raceway
3. Riverside International Raceway
4. Daytona International Speedway

1975

1. Michigan International Speedway
2. Riverside International Raceway
3. Riverside International Raceway
4. Daytona International Speedway

1976

1. Michigan International Speedway
2. Riverside International Raceway
3. Riverside International Raceway
4. Daytona International Speedway

1977

1. Michigan International Speedway
2. Riverside International Raceway
3. Riverside International Raceway
4. Daytona International Speedway

1978

1. Michigan International Speedway
2. Riverside International Raceway
3. Riverside International Raceway
4. Daytona International Speedway

1979

Qualifying Races
NASCAR Qualifying Race, Michigan International Speedway
USAC Champ Car Qualifying Race, Michigan International Speedway
Road Racing Qualifying Race, Riverside International Raceway
Final Races
Road Racing Final, Riverside International Raceway
Oval Final, Atlanta Motor Speedway

1980

Qualifying Races
NASCAR Qualifying Race, Michigan International Speedway
USAC Champ Car Qualifying Race, Michigan International Speedway
Road Racing Qualifying Race, Riverside International Raceway
Final Races
Road Racing Final, Riverside International Raceway
Oval Final, Atlanta Motor Speedway

1984

1. Michigan International Speedway
2. Burke Lakefront Airport
3. Talladega Superspeedway
4. Michigan International Speedway

1985

1. Daytona International Speedway
2. Mid-Ohio Sports Car Course
3. Talladega Superspeedwa
4. Michigan International Speedway

1986

1. Daytona International Speedway
2. Mid-Ohio Sports Car Course
3. Talladega Superspeedway
4. Watkins Glen International

1987

1. Daytona International Speedway
2. Mid-Ohio Sports Car Course
3. Michigan International Speedway
4. Watkins Glen International

1988

1. Daytona International Speedway
2. Riverside International Raceway
3. Michigan International Speedway
4. Watkins Glen International

1989

1. Daytona International Speedway
2. Nazareth Speedway
3. Michigan International Speedway
4. Watkins Glen International

1990

1. Talladega Superspeedway
2. Burke Lakefront Airport
3. Michigan International Speedway

1991

1. Daytona International Speedway
2. Talladega Superspeedway
3. Michigan International Speedway
4. Watkins Glen International

1992

1. Daytona International Speedway
2. Talladega Superspeedway
3. Michigan International Speedway
4. Michigan International Speedway

1993

1. Daytona International Speedway
2. Darlington Raceway
3. Talladega Superspeedway
4. Michigan International Speedway

1994

1. Daytona International Speedway
2. Darlington Raceway
3. Talladega Superspeedway
4. Michigan International Speedway

1995

1. Daytona International Speedway
2. Darlington Raceway
3. Talladega Superspeedway
4. Michigan International Speedway

1996

1. Daytona International Speedway
2. Talladega Superspeedway
3. Charlotte Motor Speedway
4. Michigan International Speedway

1997

1. Daytona International Speedway
2. Charlotte Motor Speedway
3. California Speedway
4. Michigan International Speedway

1998

1. Daytona International Speedway
2. California Speedway
3. Michigan International Speedway
4. Indianapolis Motor Speedway

1999

1. Daytona International Speedway
2. Talladega Superspeedway
3. Michigan International Speedway
4. Indianapolis Motor Speedway

2000

1. Daytona International Speedway
2. Talladega Superspeedway
3. Michigan International Speedway
4. Indianapolis Motor Speedway

2001

1. Daytona International Speedway
2. Talladega Superspeedway
3. Michigan International Speedway
4. Indianapolis Motor Speedway

2002

1. Daytona International Speedway
2. California Speedway
3. Chicagoland Speedway
4. Indianapolis Motor Speedway

2003

1. Daytona International Speedway
2. Talladega Superspeedway
3. Chicagoland Speedway
4. Indianapolis Motor Speedway

2004

1. Daytona International Speedway
2. Texas Motor Speedway
3. Richmond International Raceway
4. Atlanta Motor Speedway

2005

1. Daytona International Speedway
2. Texas Motor Speedway
3. Richmond International Raceway
4. Atlanta Motor Speedway

2006

1. Daytona International Speedway oval
2. Texas Motor Speedway
3. Daytona International Speedway road course
4. Atlanta Motor Speedway