Tatsunami stable
His real name was . Haguroyama made his professional debut in January 1934 at age 19, joining Tatsunami stable. His progression was remarkably rapid. He passed through all the lower divisions in just one tournament each, in every case winning the divisional championship – a feat unlikely ever to be equalled. He made his debut in the top "makuuchi" division in May 1937. He was promoted to the "ōzeki" rank after just one tournament at "sekiwake." After finishing as runner-up in the January 1941 tournament and winning his first top division title in May 1941 he was promoted to "yokozuna". After three more runner-up performances he won his first championship as a "yokozuna" in May 1944.