Yasuhiro_Koseki

Yasuhiro Koseki

Yasuhiro Koseki

Japanese swimmer (born 1992)


Yasuhiro Koseki (小関也朱篤, Koseki Yasuhiro, born March 14, 1992) is a Japanese competitive swimmer and breaststroke specialist. He won the 100-meter event at the 2013 Summer Universiade, 2013 East Asian Games, and the 2014 Pan Pacific Swimming Championships.[2][3] He hold the Asian record in this event, set in February 2014.[4]

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Since 2010 Koseki studied at the Nippon Sport Science University, where he first specialized in the freestyle, and only later changed to breaststroke, motivated by Kosuke Kitajima.


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