Masurao Hiroo

He was the head coach of Ōnomatsu stable and a director of the Japan Sumo Association until 2019 when he left for health reasons.

He entered sumo after his second year of high school, and fought his first match, under the name Tejima, at age 17 in the March tournament of 1979.

In the following September tournament he injured his knee in a bout with Ōnokuni and was forced to withdraw, falling to the bottom of the division.

He was forced to leave the Nishonoseki ichimon or group of stables in January 2010 after declaring his support for Takanohana's unsanctioned bid to be elected to the board of directors of the Sumo Association.

[4] After Takanohana's group formed its own ichimon in 2014, he was selected as their candidate for director in the 2018 elections and won a seat on the board in February 2018.

On 26 September 2019 it was announced that he was leaving the Japan Sumo Association for health reasons, being replaced as head of the Ōnomatsu stable by Otowayama-oyakata, the former maegashira Daidō.

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