2015 USA: Continental Tire Sport Car Challenge: GS
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Calendar
| # | Epreuve |
|---|---|
| 1 |  Daytona International Raceway (25 January) |
| 2 | Sebring International Raceway (20 March) |
| 3 | Mazda Raceway Laguna Seca (2 May) |
| 4 | Watkins Glen International (27 June) |
| 5 |  Canadian Tire Motorsport Pack (11 July) |
| 6 | Lime Rock Park (25 July) |
| 7 | Road America (8 August) |
| 8 | Virginia International Raceway (22 August) |
| 9 | Circuit of the Americas (18 September) |
| 10 | Road Atlanta (2 October) |