Races in calendar week 21/2021
All motorsport events on the weekend of 28–30 May 2021.
| Circuit | Country | Series |
|---|---|---|
| Brownsburg (oval) |  USA |
|
| Charlotte (oval) | USA |
|
| Indianapolis (oval) | USA |
|
| Le Castellet (Paul Ricard) |  France |
|
| St.Petersburg (Igora) |  Russia |
|
| Suzuka |  Japan |
|
| Winton Raceway |  Australia |
|