Road America 2021 Rennkalender
| Datum | Rennserie | Runde | Veranstaltungsname |
|---|---|---|---|
| 13. Mai - 15. Mai | Porsche GT3 Cup Trophy USA Beendet | Round 3 | |
| 30. Juli - 1. August | PSCNA - Porsche Sprint Challenge Nordamerika Beendet | Round 5 | |
| 5. August - 8. August | LSTNA - Lamborghini Super Trofeo Nordamerika Beendet | Round 4 | |
| 6. August - 8. August | PCCNA - Porsche Carrera Cup Nordamerika Beendet | Round 4 | |
| 6. August - 8. August | IMSA SportsCar Championship Beendet | Round 9 | Road Race Showcase at Road America |
| 11. September - 12. September | Ferrari Challenge North America Beendet | Round 7 |