Races in calendar week 18/2015
All motorsport events on the weekend of 1–3 May 2015.
| Circuit | Country | Series |
|---|---|---|
| Barbagallo (Wanneroo) |  Australia |
|
| Budapest |  Hungary |
|
| Fuji |  Japan |
|
| Hockenheim |  Germany |
|
| Monterey (Laguna Seca) |  USA |
|
| Spa-Francorchamps |  Belgium |
|
| Talladega (oval) | USA |
|
| Valencia (Cheste) |  Spain |
|