Races in calendar week 42/2023
All motorsport events on the weekend of 20–22 Oct 2023.
| Circuit | Country | Series |
|---|---|---|
| Austin |  USA |
|
| Barcelona |  Spain |
|
| Donington Park |  Great Britain |
|
| Hockenheim |  Germany |
|
| Homestead (oval) | USA |
|
| Portimao (Algarve) |  Portugal |
|