Saison 2021
La vingt-sixième saison de l'Indycar Series a lieu du 18 avril au 26 septembre 2021, lors de 16 courses, de circuit urbain temporaire, circuit routier et circuit ovale.
| Date | Course | Circuit |
|------|--------|---------|
| 18 avril | ![](https://static.ostadium.com/assets/ui/country/us.png) Honda Indy Grand Prix of Alabama presented by AmFirst | [Barber Motorsports Park](https://www.ostadium.com/stadium/3492/barber-motorsports-park)
| 25 avril | ![](https://static.ostadium.com/assets/ui/country/us.png) Firestone Grand Prix of St. Petersburg | [Streets of St. Petersburg](https://www.ostadium.com/stadium/3493/grand-prix-of-st-petersburg)
| 1er mai | ![](https://static.ostadium.com/assets/ui/country/us.png) Genesys 300 | [Texas Motor Speedway](https://www.ostadium.com/stadium/3494/texas-motor-speedway)
| 2 mai | ![](https://static.ostadium.com/assets/ui/country/us.png) XPEL 375 | [Texas Motor Speedway](https://www.ostadium.com/stadium/3494/texas-motor-speedway)
| 15 mai | ![](https://static.ostadium.com/assets/ui/country/us.png) GMR Grand Prix | [Indianapolis Motor Speedway Road Course](https://www.ostadium.com/stadium/3495/indianapolis-motor-speedway)
| 30 mai | ![](https://static.ostadium.com/assets/ui/country/us.png) 105th Running of the Indianapolis 500 | [Indianapolis Motor Speedway](https://www.ostadium.com/stadium/3495/indianapolis-motor-speedway)
| 12 juin | ![](https://static.ostadium.com/assets/ui/country/us.png) Chevrolet Detroit Grand Prix | [Belle Isle Street Circuit](https://www.ostadium.com/stadium/3496/belle-isle-for-detroit-grand-prix)
| 13 juin | ![](https://static.ostadium.com/assets/ui/country/us.png) Chevrolet Detroit Grand Prix | [Belle Isle Street Circuit](https://www.ostadium.com/stadium/3496/belle-isle-for-detroit-grand-prix)
| 20 juin | ![](https://static.ostadium.com/assets/ui/country/us.png) REV Group Grand Prix at Road America | [Road America](https://www.ostadium.com/stadium/3490/road-america)
| 4 juillet | ![](https://static.ostadium.com/assets/ui/country/us.png) Honda Indy 200 at Mid-Ohio | [Mid-Ohio Sports Car Course](https://www.ostadium.com/stadium/3497/mid-ohio-sports-car-course)
| 8 août | ![](https://static.ostadium.com/assets/ui/country/us.png) Big Machine Music City Grand Prix | [Nashville Street Circuit](https://www.ostadium.com/stadium/3498/nashville-street-circuit)
| 14 août | ![](https://static.ostadium.com/assets/ui/country/us.png) Big Machine Spiked Coolers Grand Prix | [Indianapolis Motor Speedway Road Course](https://www.ostadium.com/stadium/3495/indianapolis-motor-speedway)
| 21 août | ![](https://static.ostadium.com/assets/ui/country/us.png) Bommarito Automotive Group 500 | [Gateway Motorsports Park](https://www.ostadium.com/stadium/3499/gateway-motorsports-park)
| 12 septembre | ![](https://static.ostadium.com/assets/ui/country/us.png) Grand Prix of Portland | [Portland International Raceway](https://www.ostadium.com/stadium/3500/portland-international-raceway)
| 19 septembre | ![](https://static.ostadium.com/assets/ui/country/us.png) Firestone Grand Prix of Monterey | [WeatherTech Raceway Laguna Seca](https://www.ostadium.com/stadium/1830/weathertech-raceway-laguna-seca)
| 26 septembre | ![](https://static.ostadium.com/assets/ui/country/us.png) Acura Grand Prix of Long Beach | [Streets of Long Beach](https://www.ostadium.com/stadium/3501/long-beach-street-circuit)
![](https://static.ostadium.com/assets/ui/country/es.png) Álex Palou remporte le titre pilote, et ![](https://static.ostadium.com/assets/ui/country/us.png) Chip Ganassi Racing remporte le titre constructeur.
États-Unis
18 avril 2021-26 septembre 2021