| Runda | Tor | Data | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|
| 1 |  Continental Divide | 1968.05.26 | Eagle Mk5 - Chevrolet |  Smothers Bros Racing Team | |
| 2 | War Bonnet | 1968.06.16 | Eagle Mk5 - Chevrolet | Smothers Brothers Racing Team | |
| 3 | Road America | 1968.07.27 | Lola T140 - Chevrolet | Jerry Hansen | |
| 4 | Thompson | 1968.08.18 | Eagle Mk5 - Chevrolet | Smothers Brothers Racing Team | |
| 5 |  Mosport Park | 1968.08.25 | Eagle Mk5 - Chevrolet | Smothers Brothers Racing Team | |
| 6 | Lime Rock Park | 1968.09.02 | Eagle Mk5 - Chevrolet | Wintersteen Racing | |
| 7 | Brainerd | 1968.09.22 | Eagle Mk5 - Chevrolet | Wintersteen Racing | |
| 8 | Laguna Seca | 1968.10.12 | Eagle Mk5 - Chevrolet | Smothers Brothers Racing Team |