Career
He was the sport"s 49th yokozuna. After his retirement he was the head coach of Kasugano stable. Born in Inakdate, Minamitsugaru District, he made his professional debut in September 1955.
He joined Kasugano stable, a prestigious heya that had previously produced yokozuna Tochigiyama and Tochinishiki.
He initially fought under his own surname, Hanada. After about three years in the lower ranks he reached the second jūryō division in January 1959 and was promoted to the top makuuchi division in March 1960.
He then adopted the shikona Tochinoumi. He captured his first top division tournament championship in May 1962 at sekiwake rank and was promoted to ōzeki.
After his second championship in November 1963 and a 13-2 record in January 1964, he was promoted to sumo"s highest rank of yokozuna.
After an injury plagued 1966 he retired at the end of the year at the age of 28. He was one of the lightest yokozuna ever at just 110 kg. Tochinoumi stayed in the sumo world as an elder of the Sumo Association, under the name Nakadachi.
Somewhat unusually for an ex yokozuna, he did not immediately take charge of a stable, instead working as an assistant coach.
However, in January 1990 he did become head coach of Kasugano stable after the death of the previous stablemaster, the former Tochinishiki. He stood down in 2003, handing control of the stable over to former sekiwake Tochinowaka.
