[1] He was enrolled by his father in the Choyko Sumo Club, based in the Aichi Prefectural Gymnasium where the annual Nagoya honbasho is held.
[1] After six years of steady but unspectacular progress in the lower ranks, Tamaasuka was promoted to the second highest jūryō division in November 2004 after winning the makushita championship with a perfect 7-0 record.
[1] He reached the top makuuchi division in the Nagoya tournament in July 2005, making his debut alongside Hakurozan.
[2] He had not fully recovered from either his injury or his surgery by the January 2006 tournament but felt he had to compete to try to prevent demotion to the unsalaried makushita division.
He scored 6-1 in March 2009, losing a playoff for the makushita division championship, which was enough for an immediate return to jūryō.
In the September 2009 tournament, fighting from the maegashira 13 ranking, he recovered from 3-9 to win his last three matches and stay in the top division.
He was forced to withdraw from the following tournament in November, his first absence since January 2006, after injuring his right ankle and he fell back to jūryō as a result.
Two poor performances of 5–10 and 4-11 saw him demoted to makushita for the first time since January 2009 after the November 2010 tournament, but he won promotion back to the sekitori ranks immediately.
In September 2011 Tamaasuka was promoted back to makuuchi after scoring 8-7 at jūryō 1in the preceding July tournament.
He won his second jūryō championship in May 2012 with a score of 12–3 and secured promotion back to makuuchi, but produced his worst performance in the top division to date in the following tournament, winning only two bouts.
He said that his ambition for the remainder of his career was to earn another kachi-koshi or winning score in the top division, something which he only achieved once, in his makuuchi debut in 2005.
He used oshi techniques at the beginning of a match to set up his preferred yotsu position, a basic sumo style.
[3] Sanshō key: F=Fighting spirit; O=Outstanding performance; T=Technique Also shown: ★=Kinboshi; P=Playoff(s) Divisions: Makuuchi — Jūryō — Makushita — Sandanme — Jonidan — Jonokuchi