Races in calendar week 37/2023
All motorsport events on the weekend of 15–17 Sep 2023.
| Circuit | Country | Series |
|---|---|---|
| Bristol (oval) |  USA |
|
| Indianapolis | USA |
|
| Melbourne (Sandown) |  Australia |
|
| Monza |  Italy |
|
| Porto Alegre (Velopark) |  Brazil |
|
| Singapore |  Singapore |
|
| Sugo |  Japan |
|
| Valencia (Cheste) |  Spain |
|