On January 23, 2024, a 28-year-old Seigo Yuri Akui (18-2-1, 11 KOs) got a shot at the WBA flyweight title held by 36-year-old Ukrainian boxer Artem Dalakian (22-0, 15 KOs).
Akui came in to the fight on a 6-fight win streak with a 52% KO rate, and was fighting after a gap of 11 months and 19 days. Dalakian was on a 22-fight win streak with a 68% KO rate, and fighting after a layoff of 11 months and 26 days.
Seigo Yuri Akui defeated Artem Dalakian via unanimous decision and wins the WBA title — in his first world-title fight. Akui improves his record to 19-2-1, while Dalakian adds a loss to his record at 22-1.
On May 6, 2024, Seigo Yuri Akui and Taku Kuwahara met again in a rematch.
Akui came in to the fight on a 7-fight win streak with a 50% KO rate, and was fighting after a gap of 3 months and 13 days. Kuwahara was on a 5-fight win streak with a 57% KO rate, and fighting after a layoff of 9 months and 25 days.
Seigo Yuri Akui defeated Taku Kuwahara via unanimous decision in the rematch and successfully defended his WBA flyweight title. Akui improves his record to 20-2-1, while Kuwahara adds a loss to his record at 13-2.
On April 8, 2018, a 22-year-old Seigo Yuri Akui (11-1-1, 7 KOs) and a 25-year-old fellow Japanese boxer Masamichi Yabuki (6-1, 6 KOs) met in the ring.
Akui came in to the fight on a 1-fight losing streak with a 53% KO rate, and was fighting after a gap of 7 months and 16 days. Yabuki was on a 3-fight win streak with a 85% KO rate, and fighting after a layoff of 4 months and 13 days.
Seigo Yuri Akui stopped Masamichi Yabuki via TKO in the 1st round. Akui improves his record to 12-1-1 (8 KOs), while Yabuki adds a loss to his record at 6-2.
On October 27, 2019, a 24-year-old Seigo Yuri Akui (13-2-1, 9 KOs) and Shun Kosaka met in the ring in a flyweight bout.
Akui came in to the fight on a 1-fight win streak with a 56% KO rate, and was fighting after a gap of 5 months and 29 days.
Seigo Yuri Akui stopped Shun Kosaka via TKO in the 1st round. Akui improves his record to 14-2-1 (10 KOs)
On July 21, 2021, a 25-year-old Seigo Yuri Akui (15-2-1, 10 KOs) and a 26-year-old fellow Japanese boxer Taku Kuwahara (8-0, 4 KOs) met in the ring in a flyweight bout.
Akui came in to the fight on a 3-fight win streak with a 55% KO rate, and was fighting after a gap of 9 months and 3 days. Kuwahara was on a 8-fight win streak with a 50% KO rate, and fighting after a layoff of 4 months and 10 days.
Seigo Yuri Akui stopped Taku Kuwahara via TKO in the 10th round. Akui improves his record to 16-2-1 (11 KOs), while Kuwahara adds a loss to his record at 8-1.
On April 28, 2019, a 23-year-old Seigo Yuri Akui (12-2-1, 8 KOs) and Yoshiki Minato met in the ring.
Akui came in to the fight on a 1-fight losing streak with a 53% KO rate, and was fighting after a gap of 6 months.
Seigo Yuri Akui stopped Yoshiki Minato via TKO in the 1st round. Akui improves his record to 13-2-1 (9 KOs)
On May 16, 2017, a 21-year-old Seigo Yuri Akui (10-0-1, 6 KOs) and Ryuto Oho met in the ring.
Akui came in to the fight on a 8-fight win streak with a 54% KO rate, and was fighting after a gap of 1 month.
Seigo Yuri Akui stopped Ryuto Oho via TKO in the 1st round. Akui improves his record to 11-0-1 (7 KOs)
On December 3, 2016, a 21-year-old Seigo Yuri Akui (8-0-1, 4 KOs) and Kenji Ono met in the ring.
Akui came in to the fight on a 6-fight win streak with a 44% KO rate, and was fighting after a gap of 2 months and 1 day.
Seigo Yuri Akui stopped Kenji Ono via TKO in the 1st round. Akui improves his record to 9-0-1 (5 KOs)
On April 16, 2017, a 21-year-old Seigo Yuri Akui (9-0-1, 5 KOs) and Nattawut Siritoem met in the ring.
Akui came in to the fight on a 7-fight win streak with a 50% KO rate, and was fighting after a gap of 4 months and 13 days.
Seigo Yuri Akui stopped Nattawut Siritoem via KO in the 1st round. Akui improves his record to 10-0-1 (6 KOs)
On April 3, 2016, a 20-year-old Seigo Yuri Akui (6-0-1, 2 KOs) and Hideaki Yamaji met in the ring.
Akui came in to the fight on a 4-fight win streak with a 28% KO rate, and was fighting after a gap of 3 months and 14 days.
Seigo Yuri Akui stopped Hideaki Yamaji via KO in the 1st round. Akui improves his record to 7-0-1 (3 KOs)