Career
His highest rank was sekiwake. He is now the head coach of Irumagawa stable. He spent most of 1985 in the second jūryō division, but in 1986 made the san"yaku ranks at komusubi.
In November 1987 he scored 10-5 from the maegashira 6 ranking, defeating two ōzeki and winning the Technique Prize.
This earned him promotion to his highest rank of sekiwake for the following tournament in January 1988. However, by the end of the year he was in jūryō again due to injury problems.
After missing the September 1990 tournament he fell to jūryō again and made only one more appearance in makuuchi before retiring in May 1992 at the age of 34. He became an elder of the Japan Sumo Association under the name Irumagawa Oyakata, and established Irumagawa stable in 1993.
A powerful and versatile wrestler, Tochitsukasa preferred tsuki/oshi or pushing and thrusting techniques rather than fighting on the mawashi.
His favourite kimarite were oshi-dashi (push out) and tsuki otoshi (thrust over). He had a crowd-pleasing quirk of always staying in a squat position for much longer than normal and rocking back and forth before returning to his corner during the shikiri, or warm-up phase of a match.