Races in calendar week 28/2018
All motorsport events on the weekend of 13–15 Jul 2018.
| Circuit | Country | Series |
|---|---|---|
| New York |  USA |
|
| Orechová Potôň (Slovakiaring) |  Slovakia |
|
| Portland | USA |
|
| Sepang |  Malaysia |
|
| Sparta (oval) | USA |
|
| Toronto |  Canada |
|
| Zandvoort |  Netherlands |
|