2013 Season
| 16-Mar | 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 |
Standings
| Antonio Garcia | 135 |
| Jan Magnussen | 135 |
| Dirk Muller | 129 |
| Oliver Gavin | 105 |
| Tommy Milner | 105 |
| Bill Auberlen | 102 |
| Dominik Farnbacher | 101 |
| Marc Goossens | 101 |
| Maxime Martin | 86 |
| John Edwards | 82 |
| Olivier Beretta | 73 |
| Jonathan Bomarito | 73 |
| Matteo Malucelli | 73 |
| Kuno Wittmer | 73 |
| Bryan Sellers | 55 |
Race Winners
| Antonio Garcia | 3 |
| Jan Magnussen | 3 |
| Oliver Gavin | 2 |
| Tommy Milner | 2 |
| Bill Auberlen | 1 |
| Olivier Beretta | 1 |
| John Edwards | 1 |
| Dominik Farnbacher | 1 |
| Marc Goossens | 1 |
| Wolf Henzler | 1 |
| Matteo Malucelli | 1 |
| Maxime Martin | 1 |
| Dirk Muller | 1 |
| Bryan Sellers | 1 |
| Nick Tandy | 1 |
| Richard Westbrook | 1 |
Pole Positions
| Jonathan Bomarito | 2 |
| Matteo Malucelli | 2 |
| Bill Auberlen | 1 |
| Gianmaria Bruni | 1 |
| John Edwards | 1 |
| Dominik Farnbacher | 1 |
| Joey Hand | 1 |
| Maxime Martin | 1 |
