Kenshiro Teraji beat Seigo Yuri Akui by 12th-round TKO in Tokyo on March 13, 2025, and unified the WBC and WBA flyweight titles. He was behind on two of the three scorecards going into the last round and needed a knockdown to win on points, then stopped Akui halfway through the round without one.
Teraji closed as the favorite, between -550 and -425 according to Pro Boxing Odds, and Akui between +320 and +375. Pro Boxing Odds lists no rematch for either fighter since, so this page is the record of that night.
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How the fight was won
Going into the 12th, Teraji led 106-103 on one card and trailed 105-104 on the other two. A clean round would only have earned him a draw. He threw in volume, hurt Akui with a right uppercut and a left, right, left combination, and the referee stopped it with Akui on his feet.
ESPN’s report called the stoppage premature at first glance and correct once Akui sat down, bloodied, on his stool. The fight had run at a fast pace from the sixth round on, and Akui had been the better fighter over the second half.
| Kenshiro Teraji | Seigo Yuri Akui | |
|---|---|---|
| Title going in | WBC flyweight, first defense | WBA flyweight, third defense |
| Age | 33 | 29 |
| Record after the fight | 25-1, 16 KOs | 21-3-1, 11 KOs |
| Opening price | -480 | +330 |
| Closing range | -550 to -425 | +320 to +375 |
At -480, the opening price gave Teraji an implied 82.8% chance. It was only the third all-Japanese title unification, and Teraji had been in another: his seventh-round TKO of Hiroto Kyoguchi at 108 pounds in November 2022.
What came after
Teraji said after the fight that he wanted to move up to super flyweight, 115 pounds, to chase a third division title. By December 2025 ESPN had his record at 25-2, and a planned IBF junior bantamweight title fight against Willibaldo García in Riyadh on December 27, 2025, was called off the day before when García fell ill. Pro Boxing Odds lists him in a fight on July 20, 2026, against Israel Gonzalez.
Akui’s next listed fight was against Vencent Lacar in December 2025, where Pro Boxing Odds had him closing at -2400. Both fighters’ later results are on their Pro Boxing Odds pages.
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