The FIM has announced the following calendars for the 2010 Motocross and Supercross World Championships...

AMA Supercross, an FIM World Championship:
09.01 Anaheim USA
16.01 Phoenix USA
23.01 Anaheim USA
30.01 San Francisco USA
06.02 San Diego USA
13.02 Anaheim USA
20.02 Indianapolis USA
27.02 Atlanta USA
06.03 Daytona USA
13.03 Toronto Canada
20.03 Arlington USA
27.03 Jacksonville USA
10.04 Houston USA
17.04 St. Louis USA
24.04 Seattle USA
01.05 Salt Lake City USA
08.05 Las Vegas USA

FIM MX1/MX2 Motocross World Championships:
04.04 Sevlievo Bulgaria
11.04 Fermo Italy
25.04 Valkenswaard Netherlands
09.05 Agueda Portugal
16.05 Bellpuig Spain
30.05 Newport Great Britain
06.06 Saint Jean d'Angely France
20.06 Teutschenthal Germany
04.07 Uddevalla Sweden
18.07 Kegums Latvia
01.08 Lommel Belgium
08.08 Loket Czech Republic
22.08 Canelinha Brazil
05.09 Lierop Netherlands
12.09 Mantova Italy

FIM Motocross of Nations:
26.09 Denver, Lakewood USA