Races in calendar week 19/2021
All motorsport events on the weekend of 14–16 May 2021.
| Circuit | Country | Series |
|---|---|---|
| Dover (oval) |  USA |
|
| Elkhart Lake (Road America) | USA |
|
| Indianapolis | USA |
|
| Kamitsue (Autopolis) |  Japan |
|
| Le Castellet (Paul Ricard) |  France |
|
| Lexington | USA |
|
| Oschersleben |  Germany |
|
| Sao Paulo |  Brazil |
|
| Zeltweg (Spielberg) |  Austria |
|