Masurao Hiroo
益荒雄 広生
Personal information
Born	Hiroo Teshima (1961-06-27)27 June 1961 (age 63) Fukuoka, Japan
Height	1.88 m (6 ft 2 in)
Weight	126 kg (278 lb)
Career
Stable	Oshiogawa
Record	387-321-86
Debut	March, 1979
Highest rank	Sekiwake (July, 1987)
Retired	July, 1990
Elder name	Ōnomatsu
Championships	5 (Jūryō)
Special Prizes	Outstanding Performance (2) Fighting Spirit (2) Technique (1)
Gold Stars	2 (Futahaguro,Hokutoumi)
* Up to date as of May 2008.

Masurao Hiroo (益荒雄広生, born June 27, 1961) is aJapanese formersumo wrestler, born Hiroo Teshima (手島 広生,Teshima Hiroo) inItoda,Fukuoka Prefecture. Making his professional debut in 1979, he reached the top division in 1985. His highest rank wassekiwake and he won fivespecial prizes in his top division career. He was one of the lightest wrestlers in the top division, and very popular with tournament crowds. In his later career he suffered from a number of injuries, particularly to his knee, and he retired in 1990 at the age of 29. He was the head coach ofŌnomatsu stable and a director of theJapan Sumo Association until 2019 when he left for health reasons.

In his youth he excelled atjudo but was persuaded to give sumo a try by Oshiogawa-oyakata, the formerōzekiDaikirin. 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 1985 he entered themakuuchi ranks, having already taken the name Masurao. He won his firstspecial prize in November 1986, and his firstkinboshi in January 1987.

The March tournament of 1987 saw Masurao ranked in the titledsan'yaku ranks for the first time, atkomusubi.^[1] In the first seven days he defeated twoyokozuna (Chiyonofuji andFutahaguro) and fourōzeki (Hokuten'yū, futureyokozunaŌnokuni,Asashio, andWakashimazu).^[1] Despite these six victories over higher-ranked opponents, he began losing in the second week and ended the tournament with a 9–6 record. In the nextbasho in May he beat two moreyokozuna (Chiyonofuji and, for the third time in a row, Futahaguro) and two moreōzeki and scored 10–5. He then advanced tosekiwake, the highest rank he attained. However he finished the July 1987 tournament with a 4–11 record and never madesan'yaku again. 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. In May 1988 he injured the knee again in a bout with another heavyweight,Konishiki, and ended up dropping out of that tournament too. His knee continued to trouble him for the rest of his career, and he was demoted to the secondjūryō division on several occasions. He ended up winning thejūryō division championship five times, which is a record.

Masurao retired from wrestling in July 1990 at the age of just 29. He left a record of 387 wins, 329 losses, missing 86 bouts. His career spanned eleven years and 68 tournaments, 20 in themakuuchi division, where his record was 111-125-64. He received severalhonors: theshukun-shō twice, thekantō-shō twice, and theginō-shō once. He was known as the "White Wolf," after Chiyonofuji who was nicknamed "Wolf."^[1]

He has the fewest tournaments in the top division of anysekiwake since the introduction of the six tournaments per year system in 1958.^[2]

Masurao was ayotsu-sumo wrestler, favouring grappling and throwing rather than pushingtechniques. His favourite grip on his opponent'smawashi wasmigi-yotsu, a left hand outside, right hand inside grip. Aside fromyori-kiri, or force out, he also regularly usedsukuinage, the scoop throw, andshitatenage, the underarm throw.

After leaving the ring, Masurao remained in sumo. He became head of theŌnomatsu stable, which he founded in 1994. He produced fivemakuuchi wrestlers,^[3]Katayama,Wakakōyū,Daidō,Amūru andŌnoshō. He was forced to leave the Nishonosekiichimon or group of stables in January 2010 after declaring his support forTakanohana's unsanctioned bid to be elected to the board of directors of theSumo Association.^[4] After Takanohana's group formed its ownichimon in 2014, he was selected as their candidate for director in the 2018 elections and won a seat on the board in February 2018.^[5] He was also the chief of thejudging department. After the May 2019 tournament he was criticized by the chairman of theYokozuna Deliberation Council for giving confusing explanations of thejudges' conference to the audience after theAsanoyama-Sadanoumi match on Day 11 and the Asanoyama-Tochinoshin match on Day 13.^[6] He withdrew from judging duties for the next two tournaments, citing high blood pressure. 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 formermaegashiraDaidō.^[7]

• Glossary of sumo terms
• List of sumo tournament second division champions
• List of past sumo wrestlers
• List of sumo elders
• List of sekiwake

• 1961 births
• Living people
• Japanese sumo wrestlers
• Sumo people from Fukuoka Prefecture
• Sekiwake

• CS1 Japanese-language sources (ja)
• Articles with short description
• Short description is different from Wikidata
• Use dmy dates from October 2018
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