- January 22-24 - Daytona Int'l Speedway
- January 28-29 - Daytona Int'l Speedway
- March 17-19 - Sebring 120
- April 23-25 - Laguna Seca
- May 14-16 - Mid Ohio
- June 24-26 - Watkins Glen 240 4hrs
- July 2-3 - Canadian Tire Motorsport Park
- July 16-17 - Northeast Grand Prix
- August 6-8 - Road America
- August 20-22 - Michelin GT Challenge at VIR
- October 6-9 - Petit Le Mans Rd Atlanta
Schedule '21
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IMSA - GS
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