2021 Schedule Jan. 22-24 – Daytona International Speedway Jan. 28-31 – Daytona International Speedway Mar. 13-14 – Sebring International Raceway Mar. 17-20 – Sebring International Raceway May 14-16 – Mid-Ohio Sports Car Course June 11-12 – The Raceway at Belle Isle June 24-27 – Watkins Glen International July 1-2 – Watkins Glen International July 16-17 – Lime Rock Park Aug. 6-8 – Road America Sept. 10-12 – Weathertech Raceway Laguna Seca Sept. 24-25 – Long Beach Street Circuit Oct. 8-10 – Virginia International Raceway Nov. 10-34 – Michelin Raceway Road Atlanta