is a retired butterfly swimmer from Japan. He won the silver medal in the men's 200 m butterfly at the 1956 Summer Olympics in Melbourne, Australia.

Ishimoto set 16 world records between 1958 and 1959. He won the 100m and 200m butterfly events at the 1959 U.S. International Swimming Championships, and in the 1950s received the Japan Sports Award, Mainichi Sports Award and Asahi Sports Award (twice, in 1955 and 1957).Asahi Sports Award (1955-1964). asahi.com In 1985 he opened his own swimming pool in Kurihama, Yokosuka, Japan.当プールの歴史. kss-yokosuka.com

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