| 1 | Mobil 1 12 Hours of Sebring | 3/13/03 | Sebring International Raceway | 1 | 1 |
| 2 | Mobil 1 12 Hours of Sebing-2 | 3/14/03 | Sebring International Raceway | 1 | 1 |
| 3 | Lime Rock Grand Prix | 5/24/03 | Lime Rock Park | 3 | 2 |
| 4 | Lime Rock Grand Prix-2 | 5/24/03 | Lime Rock Park | 2 | 2 |
| 5 | Mid-Ohio Road Racing Classic | 6/28/03 | Mid-Ohio Sports Car Course | 1 | 2 |
| 6 | Mid-Ohio Road Racing Classic-2 | 6/29/03 | Mid-Ohio Sports Car Course | 1 | 1 |
| 7 | Road America Grand Prix | 8/2/03 | Road America | 1 | 23 |
| 8 | Road America Grand Prix-2 | 8/3/03 | Road America | 1 | 3 |
| 9 | CART Grand Prix of Mid-Ohio | 8/9/03 | Mid-Ohio Sports Car Course | 5 | 4 |
| 10 | CART Grand Prix of Mid-Ohio-2 | 8/10/03 | Mid-Ohio Sports Car Course | 5 | 3 |
| 11 | Petit Le Mans | 10/16/03 | Road Atlanta | 1 | DQ |
| 12 | Petit Le Mans-2 | 10/17/03 | Road Atlanta | 2 | 2 |