Races in calendar week 43/2003
All motorsport events on the weekend of 24–26 Oct 2003.
| Circuit | Country | Series |
|---|---|---|
| Donington Park |  Great Britain |
|
| Kamitsue (Autopolis) |  Japan |
|
| Magny-Cours |  France |
|
| Surfers Paradise (Gold Coast) |  Australia |
|