Kazuto Ioka Challenges Takuma Inoue At Tokyo Dome

WBC bantamweight champion meets four-division titleholder on the Naoya Inoue vs Junto Nakatani card

Takuma Inoue’s WBC bantamweight title reign arrives with questions attached. His first defense against Kazuto Ioka on May 2 at the Tokyo Dome may provide the answer.

The bout is scheduled for the undercard of the anticipated main event between Naoya Inoue and Junto Nakatani. The setting guarantees attention, but it also places Takuma in direct view on the same stage where his older brother has built a reputation as one of the sport’s dominant champions.

Inoue (21-2, 5 KOs) captured the WBC title in November with a victory over former kickboxing star Tenshin Nasukawa, who entered the bout with limited professional boxing experience. The win delivered the belt, though it left open questions about how Takuma measures against the strongest opposition at bantamweight.

Earlier parts of his career produced mixed results against higher-level opponents. Takuma challenged for a title in 2019 and lost a clear twelve-round unanimous decision to Nordine Oubaali. Several years later, he claimed the WBA bantamweight belt with a victory over Liborio Solis and defended it three times before losing the title to Seiya Tsutsumi in a wide decision in 2024.

Those results explain why his position in the division still draws questions.

Across the ring will stand one of Japan’s most accomplished champions of the past decade. Ioka (32-4-1, 17 KOs) won world titles in four weight classes and spent years as a leading figure at junior bantamweight before deciding to pursue another belt at 118 pounds.

His recent results also introduce uncertainty. Ioka lost two competitive fights to Fernando Martinez during his final stretch at junior bantamweight before returning on New Year’s Eve to stop Maikel Ordosgoitti with a sustained attack to the body. After that win, he publicly called for the opportunity to challenge Takuma.

The larger question for Ioka is age. At 36, he enters the bout following a long career in lighter divisions and now moves up to bantamweight in search of another title.

The matchup, therefore, places a champion still trying to prove his standing against a veteran whose best years came earlier in his career.

On a card headlined by Naoya Inoue’s fight with Junto Nakatani, Takuma Inoue now faces the type of opponent who should make his true level clear.