World Championships: Usain Bolt Wins 200 Meters For The Third Time.

Usain Bolt successfully defended his 200 meters title for the third time with a commanding run at the World Athletics Championships on Saturday.

American Brianna Rollins claimed her first gold medal in the 100-meter hurdles, beating defending champion Sally Pearson into second place.

Bolt claimed his second gold of the championships, and his seventh overall, in 19.66 seconds at Moscow's Luzhniki Stadium.

Compatriot Warren Weir took silver at 19.79 second. American Curtis Mitchell at 20.04 seconds edged out Nickel Ashmeade for third place, preventing an all-Jamaican podium.