1978 Trans-Am season Results Results

| Round | Date_ | Circuit | Winning_driver_TA2 | Winning_vehicle_TA2 | Winning_driver_TA1 | Winning_vehicle_TA1_ |
|---|---|---|---|---|---|---|
| 1 | May 21 | Sears Point | Greg Pickett | Chevrolet Corvette | Gene Bothello | Chevrolet Corvette |
| 2 | June 4 | Westwood | Ludwig Heimrath | Porsche 935 | Nick Engels | Chevrolet Corvette |
| 3 | June 11 | Portland | Tuck Thomas | Chevrolet Monza | Bob Matkowitch | Chevrolet Corvette |
| 4 | June 25 | Mont-Tremblant | Monte Sheldon | Porsche 935 | Bob Tullius | Jaguar XJS |
| 5 | July 8 | Watkins Glen‡ | Hal Shaw, Jr. ,  Monte Shelton | Porsche 935 | Brian Fuerstenau ,  Bob Tullius | Jaguar XJS |
| 6 | August 13 | Brainerd | Jerry Hansen | Chevrolet Monza | Bob Tullius | Jaguar XJS |
| 7 | August 19 | Mosport | Greg Pickett | Chevrolet Corvette | Bob Tullius | Jaguar XJS |