Initially aspiring to become a sumo wrestler like his father, former maegashira 3 Ōwashi Hitoshi, Ito joined the Wakamatsu stable in 1993 and adopted the shikona of Asaitō, which he later changed to Asawashi, meaning "Morning Eagle" in Japanese.

However, he ended up leaving the sport due to a recurrent knee injury in January 1999, after having reached his highest rank of jonidan 42.

[4] After being moved along with his entire class to Toryumon 2000 Project, he went to gain victories over Shuji Kondo, Jun Ogawauchi and the Syachihoko Machines.

Owashi won the UWA World Trios Championship with Takuya Sugawara and Nobutaka Araya on February 27, 2008, defeating the Brahman Brothers and Go of the Hell Demons faction.

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