Hatsuko Morioka

Hatsuko Morioka (守岡 初子, Morioka Hatsuko, born June 22, 1915) is a Japanese freestyle swimmer. She competed in the 1932 Summer Olympics and in the 1936 Summer Olympics.

In 1932, Morioka was a member of the Japanese relay team which finished fifth in the 4 × 100 metre freestyle relay event. In the 400 metre freestyle competition she was eliminated in the first round.

Four years later, she was eliminated in the semi-finals of the 100 metre freestyle competition and as part of the Japanese relay team she was eliminated in the first round of the 4 × 100 metre freestyle relay event.

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