He retired in April 2011 after the Japan Sumo Association found him guilty of involvement in match-fixing.

In November 2004 he finally made the elite sekitori ranks when he was promoted to the jūryō division.

In April 2011, along with 19 other wrestlers and coaches, he was ordered to retire by the Sumo Association after an investigation found he arranged the result of matches.

[3] Kotokasuga announced upon his promotion to the top division in May 2008 that he was marrying an old classmate who he became re-acquainted with after the March tournament of 2006 and who he began dating in May of that year.

[1] Sanshō key: F=Fighting spirit; O=Outstanding performance; T=Technique     Also shown: ★=Kinboshi; P=Playoff(s) Divisions: Makuuchi — Jūryō — Makushita — Sandanme — Jonidan — Jonokuchi