In 2017, he became the heaviest professional sumo wrestler ever by reaching the weight of 288 kilograms (635 lb), surpassing the record previously held by Konishiki.

He was born on April 26, 1983, in the small town of Zaigrayevo, Zaigrayevsky District, Buryatia in the Soviet Union.

[1] After reaching 283 kg (624 lb) in the January 2017 health check-up he tried changing his diet, eating only once a day and taking more exercise by walking around his heya.

[4] In September 2018 he announced his retirement after winning his final match, to give him a 1–6 record at the rank of jonidan 12.

[9] Speaking to reporters he paid tribute to his late stablemaster Kitanoumi, and said his most memorable match was his victory over a young Hakuhō in September 2001.

[12] Ōrora had a huge weight advantage over nearly all his opponents—his 190 kg (420 lb) advantage over the 83 kg (183 lb) wrestler Ohara in January 2012 was the largest disparity ever in a professional sumo bout, though in this bout he was beaten by the smaller wrestler when stepping out of the ring during a throw attempt.

[16] He also enjoyed employing the rare kimarite of kimedashi, or arm-barring force-out, and was credited with this technique 41 times as of July 2017, by far the most among his contemporaries.

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