| 1 | Sebring | 3/19/04 | Sebring International Raceway | 24 | 17 |
| 2 | Mid-Ohio | 6/26/04 | Mid-Ohio Sports Car Course | 31 | 27 |
| 3 | Lime Rock | 7/3/04 | Lime Rock Park | 21 | 19 |
| 7 | Road America | 8/21/04 | Road America | 22 | 31 |
| 8 | Road Atlanta | 9/24/04 | Road Atlanta | 20 | 25R |
| 10 | Mazda Raceway Laguna Seca | 10/16/04 | Laguna Seca Raceway | 27 | 16 |