| 1 | Drift Atlanta R1 | 5/13/06 | Road Atlanta | 10 | 7 |
| 2 | Drift Atlanta R2 | 5/13/06 | Road Atlanta | 12 | 24 |
| 3 | Mid Ohio R3 | 5/20/06 | Mid-Ohio Sports Car Course | 5 | 27 |
| 4 | Mid Ohio R4 | 5/21/06 | Mid-Ohio Sports Car Course | | 11 |
| 5 | Portland R5 | 6/17/06 | Portland International Raceway | 7 | 6 |
| 6 | Portland R6 | 6/18/06 | Portland International Raceway | 8 | 6 |
| 7 | Cleveland R7 | 6/24/06 | Grand Prix of Cleveland | 8 | 8 |
| 8 | Cleveland R8 | 6/25/06 | Grand Prix of Cleveland | | 9 |
| 11 | NASA Mid-Ohio R11 | 9/16/06 | Mid-Ohio Sports Car Course | 7 | 7 |
| 12 | NASA Mid-Ohio R12 | 9/17/06 | Mid-Ohio Sports Car Course | 6 | 2 |
| 13 | Road America R13 | 9/23/06 | Road America | 10 | 5 |
| 14 | Road America R14 | 9/24/06 | Road America | 11 | 8 |