| Runda | Tor | Data | Klasa | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|---|
| 1 | Daytona | 1968.02.03 | Over 2.0 | Ford Mustang | | |
| Under 2.0 | Porsche 911 | | ||||
| 2 | Sebring | 1968.03.23 | Under 2.0 | Porsche 911 | | |
| 3 | Over 2.0 | Chevrolet Camaro | | |||
| 4 | War Bonnet | 1968.05.12 | Over 2.0 | Chevrolet Camaro | | |
| Under 2.0 | Alfa Romeo GTA | | ||||
| 5 | Lime Rock Park | 1968.05.30 | Over 2.0 | Chevrolet Camaro | | |
| Under 2.0 | Porsche 911 | | ||||
| 6 | Mid-Ohio | 1968.06.16 | Over 2.0 | Chevrolet Camaro | | |
| Under 2.0 | Porsche 911 | | ||||
| 7 | Bridgehampton | 1968.06.23 | Over 2.0 | Chevrolet Camaro | | |
| Under 2.0 | Porsche 911 | | ||||
| 8 | Meadowdale | 1968.07.07 | Over 2.0 | Chevrolet Camaro | | |
| Under 2.0 | Porsche 911 | | ||||
| 9 | Mont-Tremblant | 1968.07.21 | Over 2.0 | Chevrolet Camaro | | |
| Under 2.0 | Porsche 911 | | ||||
| 10 | Bryar | 1968.08.04 | Over 2.0 | Chevrolet Camaro | | |
| Under 2.0 | Porsche 911 | | ||||
| 11 | Watkins Glen | 1968.08.11 | Over 2.0 | Ford Mustang | | |
| Under 2.0 | Porsche 911 | | ||||
| 12 | Continental Divide | 1968.08.25 | Over 2.0 | Chevrolet Camaro | | |
| Under 2.0 | Porsche 911 | | ||||
| 13 | Riverside | 1968.09.08 | Over 2.0 | Ford Mustang | | |
| Under 2.0 | Alfa Romeo GTA | | ||||
| 14 | Seattle | 1968.10.05 | Over 2.0 | Chevrolet Camaro | | |
| Under 2.0 | Alfa Romeo GTA | |