Jiro Nagasawa

Although not the first to swim the butterfly-breaststroke, Nagasawa was the first to use a dolphin kick, where the legs stayed together and moved simultaneously up then down.

[3] Nagasawa started as a backstroke swimmer, aged 11, and after World War II changed first to long-distance freestyle and then to breaststroke.

By the 1952 Summer Olympics he suffered from arthritis on both knees, and finished only sixth in the 200 m breaststroke.

In 1956 he won the USA Swimming Prize and in 1954 the Japan Sport Award.

He was inducted into the International Swimming Hall of Fame in 1993 and later in life became an Olympic National Coach.