Races in calendar week 38/2015
All motorsport events on the weekend of 18–20 Sep 2015.
| Circuit | Country | Series |
|---|---|---|
| Austin |  USA |
|
| Joliet (Chicagoland, oval) | USA |
|
| Nürburgring |  Germany |
|
| Phillip Island |  Australia |
|
| Singapore |  Singapore |
|
| Sugo |  Japan |
|
| Zandvoort |  Netherlands |
|