2015 USA: Pirelli World Challenge GTS
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Calendar
| # | Epreuve |
|---|---|
| 1 |  Circuit of the Americas (7 March) Race 1 |
| 2 | Circuit of the Americas (8 March) Race 2 |
| 3 | Streets of St. Petersburg (28 March) Race 1 |
| 4 | Streets of St. Petersburg (29 March) Race 2 |
| 5 | Barber Motorsports Park (25 April) Race 1 |
| 6 | Barber Motorsports Park (26 April) Race 2 |
| 7 |  Canadian Tire Motorsport Park (16 May) Race 1 |
| 8 | Canadian Tire Motorsport Park (17 May) Race 2 |
| 9 | Road America (27 June) Race 1 |
| 10 | Road America (28 June) Race 2 |
| 11 | Mid-Ohio Sports Car Course (1 August) Race 1 |
| 12 | Mid-Ohio Sports Car Course (2 August) Race 2 |
| 13 | Miller Motorsports Park (22 August) Race 1 |
| 14 | Miller Motorsports Park (23 August) Race 2 |
| 15 | Sonoma Raceway (29 August) Race 1 |
| 16 | Sonoma Raceway (30 August) Race 2 |
| 17 | Mazda Raceway Laguna Seca (12 September) |