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
| Scott Tucker | 173 |
| Scott Sharp | 163 |
| Guy Cosmo | 154 |
| Marino Franchitti | 141 |
| Ryan Briscoe | 129 |
| Anthony Lazzaro | 79 |
| Ed Brown | 69 |
| Johannes van Overbeek | 69 |
| Simon Pagenaud | 40 |
| David Brabham | 20 |
| Ryan Hunter-Reay | 20 |
| Peter Dumbreck | 17 |
| Jonny Kane | 17 |
| Mike Conway | 13 |
| Ricardo Gonzalez | 13 |
Race Winners
| Scott Tucker | 7 |
| Marino Franchitti | 5 |
| Ryan Briscoe | 4 |
| Guy Cosmo | 3 |
| Scott Sharp | 2 |
| Simon Pagenaud | 1 |
Pole Positions
| Ryan Briscoe | 5 |
| Marino Franchitti | 3 |
| David Brabham | 1 |
| Mike Conway | 1 |
