Races in calendar week 18/2021
All motorsport events on the weekend of 7–9 May 2021.
| Circuit | Country | Series |
|---|---|---|
| Barcelona |  Spain |
|
| Darlington (oval) |  USA |
|
| Magny-Cours |  France |
|
| Monte Carlo |  Monaco |
|
| Orechová Potôň (Slovakiaring) |  Slovakia |
|
| Tailem Bend |  Australia |
|