| Sonoma Raceway / United States of America |
5 - 7 March 2021 |
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| Circuit of the Americas / United States of America |
30 April 2021 - 2 May 2021 |
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| VIRginia International Raceway / United States of America |
4 - 6 June 2021 |
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| Music City Grand Prix / United States of America |
6 - 8 August 2021 |
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| Road America / United States of America |
27 - 29 August 2021 |
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| Watkins Glen / United States of America |
17 - 19 September 2021 |
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| Sebring International Raceway / United States of America |
1 - 3 October 2021 |
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| Indianapolis Motor Speedway / United States of America |
15 - 17 October 2021 |
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