Career
He made his professional debut in September 1985, but had an undistinguished career. He was demoted from the jūryō division in 1998 and spent the last six years of his career in the unsalaried makushita and sandanme divisions. He favoured a left-hand outside, right-hand inside grip on his opponents" mawashi or belt, and his favourite technique was shitatenage, or underarm throw.
He retired in September 2004 and became an elder in the Japan Sumo Association.
Although he had only 24 tournaments ranked as a sekitori, below the usual requirement of 30, he was able to become head coach of Miyagino stable by inheriting the toshiyori-kabu, or elder stock through marrying the daughter of a previous holder, former komusubi Hirokawa (who had died in 1989). Wrestlers inheriting a stable in this way are permitted to have a lower threshold of 12 tournaments in makuuchi or 20 tournaments as a sekitori.
The head coach of Miyagino at the time, ex maegashira Chikubayama, was forced to step aside as he only had the Miyagino stock on loan from Hirokawa"s widow (though this fact had not been widely known). Ex-Chikubayama was able to became Kumagatani-oyakata and still be affiliated to the stable.
After this controversial takeover the Sumo Association changed the rules so that ex wrestlers who only have elder stock on loan, as ex-Chikubayama did, cannot become stablemasters.
Ex-Chikubayama was the mentor of Hakuho, who had just entered the top division at the time, and he continued to be Hakuho"s primary trainer. Ex-Kanechika was rarely seen at training sessions. Match-fixing scandal
Miyagino was forced to resign as head coach by the Sumo Association in December 2010, after being caught on tape discussing match-fixing.
The allegations had first been reported in the tabloid magazine Shūkan Gendai in June 2007, but it was not until two years later that the tape itself surfaced, during the former chairman of the Sumo Association Kitanoumi"s lawsuit against the magazine in the Tokyo District Court.
Miyagino admitted that it was his voice on the tape, but that he was just "talking nonsense." Nevertheless, he accepted the Sumo Association"s "recommendation" that he swap elder names with former head coach ex-Chikubayama, who resumed head coach duties, and became known as Kumagatani-oyakata. Assault charge
In September 2015 he was arrested in connection with an assault with a metal bat on his personal assistant and driver.
He was indicted by the prosecutor"s office on 18 September for inflicting bodily injury, and fired by the Sumo Association on 1 October. He reportedly admitted in court in November 2015 to physical and verbal abuse of the victim on a number of occasions.
In addition to the beatings, these also include forcing the victim to eat a whole tub of wasabi paste and stuffing a towel into his mouth.
In a subsequent court hearing in February 2016 the victim gave further testimony and indicated he would not accept a settlement.