| 1 | Drift Atlanta R1 | 5/13/06 | Road Atlanta | 1 | 2 |
| 2 | Drift Atlanta R2 | 5/13/06 | Road Atlanta | 2 | 2 |
| 3 | Mid Ohio R3 | 5/20/06 | Mid-Ohio Sports Car Course | 2 | 26 |
| 4 | Mid Ohio R4 | 5/21/06 | Mid-Ohio Sports Car Course | | 3 |
| 5 | Portland R5 | 6/17/06 | Portland International Raceway | 6 | 8 |
| 6 | Portland R6 | 6/18/06 | Portland International Raceway | 10 | 9 |
| 7 | Cleveland R7 | 6/24/06 | Grand Prix of Cleveland | 1 | 2 |
| 8 | Cleveland R8 | 6/25/06 | Grand Prix of Cleveland | | 1 |
| 9 | Toronto R9 | 7/8/06 | Toronto Street Circuit | 2 | 2 |
| 10 | Toronto R10 | 7/9/06 | Toronto Street Circuit | 2 | 2 |
| 11 | NASA Mid-Ohio R11 | 9/16/06 | Mid-Ohio Sports Car Course | 2 | 2 |
| 12 | NASA Mid-Ohio R12 | 9/17/06 | Mid-Ohio Sports Car Course | 1 | 17 |
| 13 | Road America R13 | 9/23/06 | Road America | 3 | 1 |
| 14 | Road America R14 | 9/24/06 | Road America | 1 | 11 |