Round Date Circuit Winning driver (TA2) Winning vehicle (TA2) Winning driver (TA1) Winning vehicle (TA1)
1 May 21 United States Sears Point United States Greg Pickett Chevrolet Corvette United States Gene Bothello Chevrolet Corvette
2 June 4 Canada Westwood Canada Ludwig Heimrath Porsche 935 United States Nick Engels Chevrolet Corvette
3 June 11 United States Portland United States Tuck Thomas Chevrolet Monza United States Bob Matkowitch Chevrolet Corvette
4 June 25 Canada Mont-Tremblant United States Monte Sheldon Porsche 935 United States Bob Tullius Jaguar XJS
5 July 8 United States Watkins Glen United States Hal Shaw, Jr.
United States Monte Shelton
Porsche 935 United States Brian Fuerstenau
United States Bob Tullius
Jaguar XJS
6 August 13 United States Brainerd United States Jerry Hansen Chevrolet Monza United States Bob Tullius Jaguar XJS
7 August 19 Canada Mosport United States Greg Pickett Chevrolet Corvette United States Bob Tullius Jaguar XJS
8 September 4 United States Road America United States Greg Pickett Chevrolet Corvette United States Bob Tullius Jaguar XJS
9 October 8 United States Laguna Seca United States Greg Pickett Chevrolet Corvette United States Bob Tullius Jaguar XJS
10 November 5 Mexico Mexico City Canada Ludwig Heimrath Porsche 935 United States Bob Tullius Jaguar XJS