Brazil's Cesar Cielo & American Vollmer won Gold in 2011 World Swimming Championships

Brazil's Cesar Cielo and American Dana Vollmer won gold medals in butterfly events on 25 July 2011 at the 2011 World Swimming Championships in Shanghai.

Cielo claimed the men's 50-meter butterfly in a time of 23.10 seconds moving past Australians Matthew Targett and Geoff Huegill. The victory came only a few days after Cielo was cleared of doping charges by the Court of Arbitration for Sport.

Dana Vollmer on the other hand captured the women's 100-meter butterfly, edging Alicia Coutts of Australia by just 7/100ths of a second.

Alicia Coutts finished second in the women's 200-meter individual medley, behind China's Ye Shiwen, who went from fifth to first on the final leg and touched the wall in a time of two minutes, 8.90 seconds. Coutts was 1/10th of a second behind, while 2009 world champ Ariana Kukors of the United States placed third after leading on the final leg. Beijing Olympics gold medal winner Stephanie Rice of Australia was fourth.

Norway's Alexander Dale Oen won the men's 100-meter breaststroke. He finished in a time of 58.71 Italy's Fabio Scozzoli stood second.