- January 20-22 - Daytona Int'l Speedway
- January 26-29 - Daytona Int'l Speedway
- March 15-18 - Sebring 120
- May 12-14 - Laguna Seca
- June 2-3 - Detroit Grand Prix
- June 22-25 - Watkins Glen 240 4hrs
- July 7-9 - Canadian Tire Motorsport Park
- July 21-22 - Northeast Grand Prix
- August 3-6 - Road America
- August 25-27 - Michelin GT Challenge at VIR
- September 15-17 - Indy Battle on the Bricks
- October 11-13 - Petit Le Mans Rd Atlanta
Schedule '23
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IMSA - GS
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