| Circuit of the Americas / United States of America |
6 - 8 March 2020 |
Not available |
| Lime Rock / United States of America |
8 - 9 May 2020 |
Not available |
| VIRginia International Raceway / United States of America |
5 - 7 June 2020 |
Not available |
| Sonoma Raceway / United States of America |
7 - 9 August 2020 |
Not available |
| Road America / United States of America |
28 - 30 August 2020 |
Not available |
| Watkins Glen / United States of America |
18 - 20 September 2020 |
Not available |
| Indianapolis Motor Speedway / United States of America |
1 - 3 October 2020 |
Not available |
