Kasugaō Katsumasa (春日王 克昌, born 1 July 1977, as Kim Seong Taek) is a former sumo wrestler from Incheon, South Korea.

[citation needed] After winning a national Ssireum competition in 1998, he was invited by the stablemaster of the recently opened Kasugayama stable to come to Japan.

[4] After moving between the top two divisions a couple of times he won promotion back to makuuchi in September 2005 and reached his highest rank of maegashira 3 in March 2007.

He was forced to withdraw from the May 2008 tournament with only three wins, after suffering a knee injury on the 8th day, which resulted in demotion back to the jūryō division.

After an investigation by the Sumo Association into allegations of bout-rigging prompted by the discovery of text-messages on a mobile phone belonging to former maegashira Kasuganishiki, Kasugaō was one of 23 wrestlers and coaches found guilty of involvement.

[5] His danpatsu-shiki, or official retirement ceremony was held on May 28, 2011, with guests such as Hiroki Matsukata, Yoo Ji-tae and Choi Hong-man attending.

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