2006 Season
| 18-Mar | 12 Hours of Sebring |
| 12-May | Reliant Park |
| 21-May | Mid Ohio |
| 1-Jul | Lime Rock |
| 15-Jul | Miller Park |
| 22-Jul | Portland |
| 20-Aug | Road America |
| 3-Sep | Mosport |
| 30-Sep | Road Atlanta |
| 21-Oct | Laguna Seca |
Standings
| Rinaldo Capello | 204 |
| Allan McNish | 204 |
| James Weaver | 119 |
| Butch Leitzinger | 106 |
| Frank Biela | 99 |
| Emanuele Pirro | 99 |
| Chris Dyson | 73 |
| Guy Smith | 60 |
| Michael Lewis | 50 |
| Andy Wallace | 48 |
| Duncan Dayton | 45 |
| Chris McMurry | 41 |
| Stefan Johansson | 33 |
| Johnny Mowlem | 33 |
| Nicolas Minassian | 32 |
Race Winners
| Rinaldo Capello | 8 |
| Allan McNish | 8 |
| Frank Biela | 2 |
| Emanuele Pirro | 2 |
Pole Positions
| No Data |
