Round | Circuit | Date | Winner | Vehicle * | Entrant |
---|---|---|---|---|---|
1 | Barber | 2021.04.18 | Dallara IR18 - Honda | Chip Ganassi Racing | |
2 | St. Petersburg | 2021.04.25 | Dallara IR18 - Honda | Andretti Autosport | |
3 | Texas | 2021.05.01 | Dallara IR18 - Honda | Chip Ganassi Racing | |
4 | 2021.05.02 | Dallara IR18 - Chevrolet | Arrow McLaren SP | ||
5 | Indianapolis | 2021.05.15 | Dallara IR18 - Chevrolet | Ed Carpenter Racing | |
6 | Indianapolis | 2021.05.30 | Dallara IR18 - Honda | Meyer Shank Racing | |
7 | Belle Isle Park | 2021.06.12 | Dallara IR18 - Honda | Chip Ganassi Racing | |
8 | 2021.06.13 | Dallara IR18 - Chevrolet | Arrow McLaren SP | ||
9 | Road America | 2021.06.20 | Dallara IR18 - Honda | Chip Ganassi Racing | |
10 | Mid-Ohio Sports Car Course | 2021.07.04 | Dallara IR18 - Chevrolet | Team Penske | |
- | Toronto | 2021.07.11 | Race cancelled (COVID-19 pandemic) | ||
11 | Nashville | 2021.08.08 | Dallara IR18 - Honda | Chip Ganassi Racing | |
12 | Indianapolis | 2021.08.14 | Dallara IR18 - Chevrolet | Team Penske | |
13 | Gateway | 2021.08.21 | Dallara IR18 - Chevrolet | Team Penske | |
14 | Portland | 2021.09.12 | Dallara IR18 - Honda | Chip Ganassi Racing | |
15 | Laguna Seca | 2021.09.19 | Dallara IR18 - Honda | Andretti Autosport | |
16 | Long Beach | 2021.09.26 | Dallara IR18 - Honda | Andretti Autosport |