Seigo Yuri Akui has three losses against three opponents on his boxing record. For a list of Akui's best fights, refer to "Best fights of Seigo Yuri Akui".
On March 13, 2025 Seigo Yuri Akui, the WBA champion, met Kenshiro Teraji, the WBC champion, in a flyweight world-title unification fight. Akui was 29 years old and with a record of 21-3-1 (11), and Teraji was 33 years old and with a record of 24-1 (15). Akui lost the fight via 12th-round TKO and lost his title.
On October 28, 2018 Seigo Yuri Akui faced off against Jaysever Abcede at age 23. He was coming in with a record of 12-2-1 (8). Akui lost the fight via 8th-round TKO.
On August 23, 2017 Seigo Yuri Akui faced off against Junto Nakatani in a flyweight bout at age 21. He was coming in with a record of 11-1-1 (7), and Nakatani was 19 years old and with a record of 12-0 (9). Akui lost the fight via 6th-round TKO.