| Race # | Event | Location | Track Type | Date | |
|---|---|---|---|---|---|
| 1 |  | Honda Grand Prix of Alabama | Barber Motorsports Park | Road Course | 18 April |
| 2 | | Firestone Grand Prix of St. Petersburg | St. Petersburg | Street | 25 April |
| 3 | | Genesys 300 | Texas Motor Speedway | Oval | 1 May |
| 4 | | XPEL 375 | Texas Motor Speedway | Oval | 2 May |
| 5 | | GMR Grand Prix | Indianapolis Road Course | Road Course | 15 May |
| 6 | | 105th Indianapolis 500 | Indianapolis Motor Speedway | Oval | 30 May |
| 7 | | Chevrolet Detroit Grand Prix Race 1 | Belle Isle, Detroit | Street | 12 June |
| 8 | | Chevrolet Detroit Grand Prix Race 2 | Belle Isle, Detroit | Street | 13 June |
| 9 | | REV Group Grand Prix | Road America | Road Course | 20 June |
| 10 | | Honda Indy 200 | Mid-Ohio | Road Course | 4 July |
| 11 |  | Honda Indy Toronto | Toronto | Street | 11 July |
| 12 | | Music City Grand Prix | Nashville | Street | 8 August |
| 13 | | Harvest Grand Prix | Indianapolis Road Course | Road Course | 14 August |
| 14 | | Bommarito Auto Group 500 | Gateway | Oval | 21 August |
| 15 | | Grand Prix of Portland | Portland | Road Course | 12 September |
| 16 | | Firestone Grand Prix of Monterey | Laguna Seca | Road Course | 19 September |
| 17 | | Acura Grand Prix of Long Beach | Long Beach | Street | 26 September |
2021 IndyCar Calendar
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