IROC II

IROC II was the second year of IROC competition, which took place over three weekends in 1974 and 1975. It saw the use of the Chevrolet Camaro in all races, which replaced the Porsche Carrera RSR race cars used in the first year of competition. The only track carried over from the first year was Riverside International Raceway, as the series raced on the oval at Daytona International Speedway instead of the infield road course. Michigan International Speedway was also added as the second oval in the schedule, which consisted of four races. Bobby Unser won the series championship and $41,000.

The roster of drivers and final points standings were as follows:

Michigan International Speedway, Race One

 * 1) Bobby Unser
 * 2) Cale Yarborough
 * 3) David Pearson
 * 4) Bobby Allison
 * 5) George Follmer
 * 6) Emerson Fittipaldi
 * 7) Ronnie Peterson
 * 8) Johnny Rutherford
 * 9) A. J. Foyt
 * 10) Richard Petty
 * 11) Graham Hill
 * 12) Jody Scheckter

Riverside International Raceway, Race Two

 * 1) Emerson Fittipaldi
 * 2) George Follmer
 * 3) A. J. Foyt
 * 4) David Pearson
 * 5) Richard Petty
 * 6) Jody Scheckter
 * 7) Ronnie Peterson
 * 8) Cale Yarborough
 * 9) Johnny Rutherford
 * 10) Graham Hill
 * 11) Bobby Unser
 * 12) Bobby Allison

Riverside International Raceway, Race Three

 * 1) Bobby Allison
 * 2) Bobby Unser
 * 3) Emerson Fittipaldi
 * 4) A. J. Foyt
 * 5) George Follmer
 * 6) Graham Hill
 * 7) Johnny Rutherford
 * 8) Ronnie Peterson
 * 9) Cale Yarborough
 * 10) Richard Petty
 * 11) David Pearson
 * 12) Jody Scheckter

Daytona International Speedway, Race Four

 * 1) Bobby Unser
 * 2) A. J. Foyt
 * 3) Cale Yarborough
 * 4) Bobby Allison
 * 5) David Pearson
 * 6) Emerson Fittipaldi
 * 7) Ronnie Peterson
 * 8) George Follmer
 * 9) Johnny Rutherford