[2] The Sumo Association has owned the site of the former Tokyo Technical High School at the base of Kuramae Bridge since before World War II.

[3] Due to resource shortages after the war, the beginnings of the arena were built using the scraps from the demolition of the naval hangar of Atsugi.

[5] In September 1952, the four traditional pillars (shihon-bashira) were replaced by the current tsuriyane (suspended ceiling),[6] as the matches began to be broadcast.

From 1953 to 1971, the Kuramae Kokugikan underwent a series of renovations, including electric boards to announce the bout results, air conditioning and heating.

[10] The arena also held different tournaments for a large variety of sports, including boxing, judo and kendo.