In November 2004, ranked at the very bottom of jūryō, he produced a disastrous 1–14 record and was demoted to the third makushita division, where he had begun his career.

He retired in February 2012 and took charge of the Kasugayama stable as the previous head, former maegashira Kasugafuji, concentrated on his role as a director of the Sumo Association's board.

After a legal dispute with the former Kasugafuji, who subsequently left the Sumo Association and claimed rent had not been paid to him, Hamanishiki moved the stable to a new location in Kawasaki city.

Continuing legal disputes with the former head of the stable meant that he had not been given the official certificate granting him ownership of the Kasugayama elder stock, and thus was not qualified to be a stablemaster.

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