Ōyutaka Masachika (born 29 March 1955 as Eiji Suzuki) is a former sumo wrestler from Horinouchi, Niigata, Japan.
He retired in January 1987, and became an elder in the Japan Sumo Association under the name Arashio.
His son fought for the stable under the shikona Chikarayama, retiring in January 2017.
Arashio-oyakata reached the mandatory retirement age of 65 in March 2020, and was replaced as head coach of the stable by his most successful wrestler, maegashira Sōkokurai.
Sanshō key: F=Fighting spirit; O=Outstanding performance; T=Technique Also shown: ★=Kinboshi; P=Playoff(s) Divisions: Makuuchi — Jūryō — Makushita — Sandanme — Jonidan — Jonokuchi