Usain Bolt edges out fellow Jamaican Nesta Carter in 100 m race in Monaco . World champion set his season 's best time of 11 seconds despite his poor start . He will defend his three titles at the world championships in South Korea . In the men 's 400m hurdles , Olympic champion Angelo Taylor defeated fellow American Bershawn Jackson while Britain 's David Greene was third . Jamaican women dominate 200 m race with Carmelita Jeter beating world champion Allyson Felix .
Usain Bolt edges out fellow Jamaican Nesta Carter in 100 m race in Monaco . World champion set his season 's best time of 11 seconds despite his poor start . He will defend his three titles at the world championships in South Korea . Jamaican women dominate 200 m race with Carmelita Jeter beating world champion Allyson Felix .