Races in calendar week 40/2015
All motorsport events on the weekend of 2–4 Oct 2015.
| Circuit | Country | Series |
|---|---|---|
| Barcelona |  Spain |
|
| Braselton (Road Atlanta) |  USA |
|
| Dover (oval) | USA |
|
| Hockenheim |  Germany |
|
| Misano |  Italy |
|
| Monza | Italy |
|
| Zolder |  Belgium |
|