2018 USA: Pirelli World Challenge GTS
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Calendar
| # | Epreuve |
|---|---|
| 1 |  Streets of St. Petersburg (10 March) Race 1 |
| 2 | Streets of St. Petersburg (11 March) Race 2 |
| 3 |  Canadian Tire Motorsport Park (19 May) Race 1 |
| 4 | Canadian Tire Motorsport Park (20 May) Race 2 |
| 5 | Road America (23 June) Race 1 |
| 6 | Road America (24 June) Race 2 |
| 7 | Watkins Glen International (1 September) Race 1 |
| 8 | Watkins Glen International (1 September) Race 2 |