2026 Entry Lists
Season
| Circuit Names / Country | Date | List |
|---|---|---|
| Sonoma Raceway / United States of America | 27 March 2026 - 29 June 2025 | Not available |
| Circuit of the Americas / United States of America | 24 - 26 April 2026 | Not available |
| Sebring International Raceway / United States of America | 7 - 9 May 2026 | Not available |
| Michelin Raceway Road Atlanta / United States of America | 12 - 14 June 2026 | Not available |
| Road America / United States of America | 28 - 30 August 2026 | Not available |
| Barber Motorsports Park / United States of America | 25 - 27 September 2026 | Not available |
| Indianapolis Motor Speedway / United States of America | 8 - 11 October 2026 | Not available |