Races in calendar week 13/2015
All motorsport events on the weekend of 27–29 Mar 2015.
| Circuit | Country | Series |
|---|---|---|
| Junín |  Argentina |
|
| Martinsville (oval) |  USA |
|
| Melbourne (Sandown) |  Australia |
|
| Sepang |  Malaysia |
|
| St.Petersburg | USA |
|
| Symmons Plains | Australia |
|