Schedule
| Rnd | Race | Length/Duration | Circuit | Date |
|---|---|---|---|---|
| 1 |  Rolex 24 at Daytona | 24 Hours | Daytona International Speedway | February 5 February 6 |
| 2 | Grand Prix of Miami | 250 Miles | Homestead-Miami Speedway | March 5 |
| 3 | Ferrari Maserati 400 | 400 km | California Speedway | April 3 |
| 4 | Road & Track 250 | 250 Miles | Mazda Raceway Laguna Seca | May 1 |
| 5 |  6 Hours of Mont-Tremblant | 6 Hours | Circuit Mont-Tremblant | May 21 |
| 6 | Sahlen's Six Hours of the Glen | 6 Hours | Watkins Glen International | June 12 |
| 7 | Brumos Porsche 250 | 250 Miles | Daytona International Speedway | June 30 |
| 8 | Porsche 250 | 400 km | Barber Motorsports Park | July 31 |
| 9 | CompUSA 200 at the Glen | 200 Miles | Watkins Glen International | August 12 |
| 10 | EMCO Gears Classic | 400 km | Mid-Ohio | August 27 |
| 11 | Phoenix 250† | 250 Miles | Phoenix International Raceway | September 9 (GT) September 10 (DP) |
| 12 | Crown Royal 250 at the Glen | 250 Miles | Watkins Glen International | September 24 |
| 13 | VIR 400 | 400 km | Virginia International Raceway | October 9 |
| 14 |  Mexico City 250 | 250 Miles | Autódromo Hermanos Rodríguez | November 5 |
† - The DP and GT classes ran separate, individual races at Phoenix.
