Races in calendar week 39/2006
All motorsport events on the weekend of 29 Sep–1 Oct 2006.
| Circuit | Country | Series |
|---|---|---|
| Braselton (Road Atlanta) |  USA |
|
| Budapest |  Hungary |
|
| Enna (Pergusa) |  Italy |
|
| Le Mans (Bugatti) |  France |
|
| Oschersleben |  Germany |
|
| Shanghai |  China |
|
| Thruxton |  Great Britain |
|
| Vallelunga | Italy |
|
| Zandvoort |  Netherlands |
|