At the 1956 Games, men swam 200 meters and women swam 100 meters in butterfly competition. The men's gold medalist was William Yorzyk of the United States in a time of 2:19.3 and the women's gold medalist was Shelley Mann of the United States in a time of 1:11.0.
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Michael Phelps won both the 100-meter and 200-meter Butterfly at the 2008 Summer Games, setting a world record in the 200, and an Olympic record in the 100.
The athlete who won the Gold Medal in the men's 100 m butterfly competition during the 2016 Rio Olympics was Joseph Schooling of Singapore.