Usain Bolt, the Jamaican world-record holder in the 100 and 200 meters, will launch his sprint season at home this month, then race in at least six other meets before the world championship in August, his manager said. Bolt will run his first 100 on March 14 at a meet in Spanish Town, Jamaica, where he began his 2008 season. He also hopes to race in Kingston?s May 2 Jamaica Invitational before competing internationally. bolt.