USA Cycling would like to announce that the deadline to register for the UCI Supercross World Cup event in Chula Vista, California, has been extended to September 1. Competition begins with time trial qualifying on Friday, September 17 and round three of the World Cup series on Saturday, September 18 at the Olympic Training Center in Chula Vista. The Chula Vista event, while part of the 2011 season, is the next-to-last race in the UCI Supercross World Cup series for 2010. The final stop is in Fréjus, France on October 8-9.