Races in calendar week 40/2020
All motorsport events on the weekend of 2–4 Oct 2020.
| Circuit | Country | Series |
|---|---|---|
| Cascavel |  Brazil |
|
| Fuji |  Japan |
|
| Homestead |  USA |
|
| Indianapolis | USA |
|
| Mugello |  Italy |
|
| Sachsenring |  Germany |
|
| Snetterton |  Great Britain |
|
| Talladega (oval) | USA |
|