Races in calendar week 37/2018
All motorsport events on the weekend of 14–16 Sep 2018.
| Circuit | Country | Series |
|---|---|---|
| Hockenheim |  Germany |
|
| Las Vegas (oval) |  USA |
|
| Melbourne (Sandown) |  Australia |
|
| Millville | USA |
|
| Nürburgring | Germany |
|
| Singapore |  Singapore |
|
| Sonoma (Sears Point) | USA |
|
| Sugo |  Japan |
|