| 2021 Sebring International Raceway |
February 18 - 21, 2021 |
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| 2021 Charlotte Motor Speedway |
March 18 - 21, 2021 |
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| 2021 Road Atlanta |
March 26 - 28, 2021 |
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| 2021 Sonoma International Raceway |
April 23 - 25, 2021 |
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| 2021 WeatherTech Raceway Laguna Seca |
April 30, 2021 - May 2, 2021 |
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| 2021 Thunderhill Raceway Park |
May 14 - 16, 2021 |
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| 2021 Lime Rock Park |
May 28 - 31, 2021 |
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| 2021 Ridge Motorsports Park |
June 11 - 13, 2021 |
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| 2021 MidOhio Sports Car Course |
June 25 - 27, 2021 |
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| 2021 Road America |
July 2 - 4, 2021 |
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| 2021 Brainerd International Raceway |
July 16 - 18, 2021 |
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| 2021 Portland International Raceway |
July 23 - 25, 2021 |
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| 2021 Music City Grand Prix (Nashville - TA2 Only) |
August 6 - 7, 2021 |
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| 2021 Watkins Glen |
September 10 - 12, 2021 |
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| 2021 VIRginia International Raceway |
September 24 - 26, 2021 |
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| 2021 Utah Motorsports Campus |
October 8 - 10, 2021 |
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| 2021 Circuit of the Americas |
November 5 - 7, 2021 |
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