Kirsty Coventry of Zimbabwe sets a new world record in the women's 100 m backstroke semifinal with a time of 58.77.
Kosuke Kitajima of Japan wins the Olympic gold medal in the men's 100 m breaststroke, and sets a world record of 58.91.
Arkady Vyatchanin of Russia sets a new Olympic record in the men's 100 m backstroke semifinal with a time of 53.06, only for the record to be set again in heat 2 of the semifinal by Hayden Stoeckel of Australia, with a time of 52.97.
