Races in calendar week 39/2025
All motorsport events on the weekend of 26–28 Sep 2025.
| Circuit | Country | Series |
|---|---|---|
| Barcelona |  Spain |
|
| Buenos Aires |  Argentina |
|
| Fuji |  Japan |
|
| Kansas City (oval) |  USA |
|
| Mogi Guaçu (Velo Cittá) |  Brazil |
|
| Nürburgring (Nordschleife) |  Germany |
|