Date of Birth: 
About Masatsukasa Kōshin
- Masatsukasa Koshin (born 7 June 1984 as Masahito Ono) is a former sumo wrestler from Aomori Prefecture, Japan.
- His highest rank was maegashira 8.
- He was forced to retire in April 2011 after an investigation by the Japan Sumo Association found him guilty of match-fixing.
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