is a Mongolian former professional sumo wrestler from Ulaanbaatar. He began his professional sumo career in 2013 at the age of eighteen and retired in February 2026. He wrestled for Oitekaze stable and his highest rank was maegashira 9.
Shijirbayar spent his childhood in Ulaanbaatar and was a good student, but was sent to Japan to study after his fourth grade year, with his mother wishing for him to get a better education. While at this new school he discovered sumo and started wrestling. After showing an aptitude for sumo, by junior high school he was asked by fellow Mongolian rikishi to join Shikihide stable but chose to stay in school. In high school he was introduced to Oitekaze Oyakata who then took him into Oitekaze stable. His shikona of Daishà Âhà  was derived from his stablemaster, with the hà  kanji coming from yokozuna Taihà  and Hakuhà Â.
Shijirbayar entered professional sumo in 2013, debuting in the March 2013 tournament. After starting off strong with a 6âÂÂ1 in jonokuchi, followed by winning the jonidan division with a perfect 7âÂÂ0 record, a subsequent 2âÂÂ5 meant a first make-koshi losing record. Within two additional tournaments in sandanme, he found himself in makushita, where he remained for 16 basho before gaining sekitori status by being promoted to the jà «ryà  division after the September 2016 tournament. He told reporters when his promotion was announced that he looked up to yokozuna Kakuryà « as a role model, and that he simply hoped to get a kachi-koshi or winning record in his jà «ryà  debut. However, in the event Daishà Âhà  fell short of that with a 5âÂÂ10 record in November 2016, and he was immediately demoted back to makushita. After a year in makushita, he earned promotion back to jà «ryà  for the January 2018 tournament. He was able to remain in the division this time, recording six straight winning records to rise to Jà «ryà  1 by January 2019. He secured another 8âÂÂ7 record in January, and won promotion to the top makuuchi division for the first time at the rank of maegashira 16. He became the 25th Mongolian to be promoted to makuuchi, and alongside Tomokaze and Terutsuyoshi it marked the first time since May 2013 that three wrestlers had made their top division debuts simultaneously.
In the March 2019 tournament in Osaka Daishoho fell just short of a winning record with seven wins against eight losses. However he remained in the top division at the same rank when the banzuke was released for the May 2019 tournament. In this tournament he secured his first winning record in the top division of 9âÂÂ6, and was promoted to his highest rank to date of maegashira 9 for the July 2019 tournament. He lost to Enhà  on the final day to fall to a 6âÂÂ9 record in July, and a disappointing 5âÂÂ10 score in September saw him fall to maegashira 15 for the November tournament.
Daishà Âhà  lost his top division status after the November 2019 tournament. After the September 2020 tournament he was demoted from jà «ryà  to makushita. After three tournaments in makushita he returned to the jà «ryà  division after the March 2021 tournament. He returned to the top division in March 2023. In August of the same year, he was the heaviest makuuchi wrestler at , just behind Mitoryà « who was the heaviest active sekitori.
Daishà Âhà  announced his retirement in February 2026, just after a final tournament in the division where he had recorded a negative score. At his retirement press conference, he told reporters that during the November 2025 tournament he had aggravated a back injury that he suffered in January of that year, and decided to retire after his back was not getting better. He will not remain with the Sumo Association as a coach, saying that he intended to remain in Japan and work as an importer and seller of Mongolian clothing and products through a company run by his Japanese wife.
Daishà Âhà  is married to a Japanese wife and has three sons. As of his retirement in February 2026, he was intending to seek permanent residency in Japan.
Daishà Âhà  was a wrestler, preferring grappling techniques to pushing and thrusting. He used a grip on the , with his right hand inside and left hand outside his opponent's arms. His most common winning technique was a straightforward , or frontal force out. Other common techniques included the basic (frontal push out) as well as (slap down).