28–30 Apr | Virginia International Raceway, United States Nissan Grand Prix of VIR | The event has ended. | |
19–21 May | Canadian Tire Motorsport Park, Canada Pirelli World Challenge at CTMP | The event has ended. | |
26–27 May | Lime Rock Park, United States Grand Prix of Lime Rock Park | The event has ended. | |
11–13 Aug | Utah Motorsports Campus, United States Grand Prix of Utah presented by Security National Mortgage | The event has ended. | |
1–3 Sep | Circuit of the Americas, United States Grand Prix of Texas | The event has ended. |