Kalendar Perlumbaan Indianapolis Motor Speedway 2021
| Tarikh | Siri Perlumbaan | Bulatan | Nama Acara |
|---|---|---|---|
| 16 Julai - 18 Julai | Ferrari Challenge North America Selesai | Round 6 | Ferrari Racing Days |
| 10 September - 12 September | PCCNA - Piala Porsche Carrera Amerika Utara Selesai | Round 5 | |
| 10 September - 12 September | PSCNA - Cabaran Porsche Sprint Amerika Utara Selesai | Round 6 | Porsche Racing Festival |
| 13 Oktober - 16 Oktober | PSCNA - Cabaran Porsche Sprint Amerika Utara Selesai | Round 8 | Octoberfest |
| 14 Oktober - 17 Oktober | Cabaran GT Antara Benua Selesai | Round 2 | Indianapolis 8 Hour |