John Hencken

John Frederick Hencken, born on 29 May 1954 in Culver City, California, is an American former competition swimmer who swam for Stanford University, won three Olympic gold medals and set world records in the 100 and 200 metre breaststroke. At the 1972 Summer Olympics in Munich he won gold in the 200 metre breaststroke with a world record of 2:21.55 and bronze in the 100 metre breaststroke. At the 1976 Summer Olympics in Montreal he won gold in the 100 metre breaststroke in a world record 1:03.11, gold with the United States in the 4 by 100 metre medley relay, and silver in the 200 metre breaststroke. He also won the 100 metre breaststroke at the 1975 World Championships, won five NCAA titles at Stanford, and in his career set 21 American and 13 world records and won 14 American Athletic Union national titles.