2013 Season
| 16-Mar | 12 Hours of Sebring |
| 20-Apr | Long Beach |
| 11-May | Laguna Seca |
| 6-Jul | Lime Rock |
| 21-Jul | Mosport |
| 11-Aug | Road America |
| 31-Aug | Baltimore |
| 21-Sep | COTA |
| 5-Oct | Virginia |
| 19-Oct | Road Atlanta |
Championship Standings
| Klaus Graf | 182 |
| Lucas Luhr | 182 |
| Nick Heidfeld | 82 |
| Neel Jani | 82 |
| Tony Burgess | 68 |
| Chris McMurry | 68 |
| Chris Dyson | 52 |
| Nicolas Prost | 48 |
| Guy Smith | 48 |
| Katherine Legge | 26 |
| Andy Meyrick | 26 |
| Romain Dumas | 20 |
| Johnny Mowlen | 16 |
Race Winners
| Klaus Graf | 8 |
| Lucas Luhr | 8 |
| Marcel Fassler | 1 |
| Nick Heidfeld | 1 |
| Neel Jani | 1 |
| Oliver Jarvis | 1 |
| Nicolas Prost | 1 |
| Benoit Treluyer | 1 |
Pole Positions
| Neel Jani | 3 |
| Lucas Luhr | 3 |
| Klaus Graf | 2 |
| Marcel Fassler | 1 |
| Guy Smith | 1 |
