Early career

Tamashōhō was born in Mongolia into a family steeped in wrestling. His father was a famous bökh and judo coach whose students included Asashōryū, Harumafuji, Asasekiryū, Tokitenku, Hakuba and Ryūō.^[1] Tamashōhō though had no interest in wrestling at first, preferring basketball or ice skating.^[2] He however changed his mind and came to Japan at the invitation of yokozuna Harumafuji to become a rikishi, or professional sumo wrestler, in September 2010.^[2][3] He first made a deal to join Takashima stable, run at the time by former sekiwake Kōbōyama. However his visa expired and he temporarily returned to Mongolia. At his return the stable closed because its only remaining wrestler had retired before Tamashōhō had the chance to pass the new apprentice examination, and so he was transferred to Kasugayama stable.^[2] Because he did not yet started to wrestle for Takashima stable, Tamashōhō is not officially listed as a member of the stable on his record, although his membership to five different stables is regularly noted and mentioned by the press.^[1][4] Beginning his career in maezumō, he was given the shikona, or ring name, Takakasuga (高春日) a combination of the first kanji of Kōbōyama's own name, the oyakata who should have been his master, and the first two kanji of his master at Kasugayama stable (former maegashira Kasugafuji). During his years at Kasugayama stable, Tamashōhō came close to winning the sandanme championship in March 2014, but failed in a playoff against Chiyoarashi.^[5] He then climbed the ranks and was promoted to the makushita division for November 2013, just two years after his professional debut. However, in 2016, the new master of his stable, the 21st Kasugayama (former maegashira Hamanishiki), was ordered by the Japan Sumo Association to resign his position of stablemaster after a dispute over the acquisition of a coaching licence between him and his predecessor was settled in court.^[6] In the first time, the majority of the wrestlers were transferred to Oitekaze stable, but in the same month, the 15th Nakagawa (former maegashira Asahisato) announced he took over the stable, renaming it after his own title. In the span of a month Tamashōhō hence transferred from Oitekaze to Nakagawa stable.^[4] Later in the year he received a new shikona inspired by the name of a patron of his new stable and was hence renamed Tanegashima (種子島). In November 2017 he changed his shikona again and was renamed Kyokusōten (旭蒼天), after the first kanji of his master Nakagawa's former wrestling name and to evoke the colour of the Mongolian sky, which he likes.^[7] This reference will also be reused when he was promoted to the rank of jūryō while choosing the colour of his shimekomi.^[8] In March 2020, Tamashōhō was in contention to win the makushita tournament, having won his first 6 bouts. He failed, however, being defeated by Nishikifuji who went on to win the championship.^[9] At the beginning of July of the same year, reports emerged that the Sumo Association's compliance department was investigating complaints by wrestlers at the stable of power harassment leveled against the stablemaster and on the 13th of the same month it was decided that the stable would close down, with the remaining wrestlers and staff to be distributed between seven stables.^[10][11] Tamashōhō was therefore transferred to Kataonami stable and adopted his current shikona, given to him to evoke the 14th Kataonami (the former sekiwake Tamakasuga) and the hopes of his master that he would "live a righteous life".^[2][12] Commenting on his five stable changes, Tamashōhō expressed his gratitude for having learned from five different masters.^[4]

Jūryō career

At the November 2022 tournament, Tamashōhō won all 7 of his matches and went on to win the makushita tournament.^[13] During this tournament, he defeated the former ōzeki Asanoyama and inflicted his only defeat of the tournament on him by hatakikomi.^[14] At the next tournament, in January 2023, he was promoted to the rank of East Makushita 1, being then in a situation of potential promotion in the jūryō division. In his last match he won for the fourth time in seven matches, beating former maegashira and upper-division wrestler Terutsuyoshi.^[15] At the ranking preparation meeting on 25 January of the same year, it was confirmed that Tamashōhō would be promoted to jūryō for the March tournament in Osaka.^[16] This promotion makes Tamashōhō the second slowest foreign wrestler, at 68 tournaments in professional sumo, to reach this rank behind fellow Mongolian Oniarashi [ja] and his 71 tournaments.^[8][17] He was also the third lightest sekitori at the time.^[8] At the time of his promotion, observers noted the unusual situation in which two of the four wrestlers in Kataonami stable wore white training mawashi, a privilege for wrestlers who have reached sekitori status.^[18] Tamashōhō's promotion to jūryō also posed a logistical problem, since a sekitori is supposed to have one or more tsukebito (assistant) depending on his rank and division. Tamashōhō having been promoted to jūryō, however, had to remain Tamawashi's tsukebito for some time to allow Tamawashi to recruit a new assistant.^[18] In preparation for his first tournament as a sekitori, Tamashōhō worked on his weight gain and gained 8 kg (18 lb), something he had been struggling to work on.^[7]

Tamashōhō inflicted his first defeat on Hakuōhō (then known as Ochiai) on day 2 of the March 2023 tournament (in Osaka).^[19] On the sixth day of the same tournament he injured his leg after losing to Tomokaze.^[20][21] Nevertheless, he finished the tournament with a kachi-koshi of 8 wins and 7 losses, and maintained his jūryō status. Following good results in the May tournament, Tamashōhō was promoted to the rank of East Jūryō 5.