(April 10th) On May 2nd, Takuma Inoue will make the first defense of his WBC bantamweight title against Kazuto Ioka,in a historic co-main event at the Tokyo Dome. The bout shares the card with Naoya Inoue’s undisputed junior featherweight clash against Junto Nakatani, forming one of the most significant all-Japanese events in boxing history.

This matchup represents a pivotal moment for both fighters and their camps. The 30 year old, Takuma Inoue, 21–2, 5Ko’s  looks to silence critics who questioned his legitimacy following his victory over Tenshin Nasukawa, while Ioka, 32–4–1, 17Ko’s now 36, is attempting to become the first male Japanese boxer to win world titles in five weight divisions.

The fight carries deep historical weight. The rivalry between the Ohashi Boxing Gym and Ioka Boxing Gym spans three decades. It pits Takuma’s physical prime against Ioka’s elite ring IQ and experience across four divisions. Ioka, a former world champion at minimumweight, light flyweight, flyweight, and super flyweight, moved up to bantamweight in late 2025, announcing his intentions with a fourth-round body-shot knockout of Maikel Ordosgoitti.

Despite a two-inch reach disadvantage and a lower knockout rate (24% compared to Ioka’s 53%), Takuma enters as the favorite, though oddsmakers give Ioka a credible 35% chance of an upset. Even Naoya Inoue has reportedly expressed reservations about his brother’s chances, underscoring the danger Ioka presents.

The magnitude of the co-main is amplified by the historic main event: Naoya Inoue, 32–0, 27Ko’s vs. Junto Nakatani, 32–0, 24Ko’s for the undisputed junior featherweight championship. The sold-out Tokyo Dome, with a capacity of 55,000, will host a showdown years in the making between Japan’s pound-for-pound king and his most dangerous domestic rival.

Nakatani, a southpaw from Inabe, Mie Prefecture, is a three-division world champion (flyweight, super flyweight, bantamweight) with a 75% knockout rate. He brings a rare blend of size and skill, holding a six-inch height advantage (5'8" vs. 5'5") and a one-inch reach edge (68.5" vs. 67.5"), along with a versatile style that has troubled every opponent he has faced.

His résumé includes dominant wins over Andrew Moloney (twice), Ángel Acosta, Alexandro Santiago, and Sebastian Hernandez—the latter a 12-round unanimous decision in December 2025 that secured his status as mandatory challenger.

The stakes are immense: Inoue aims to cement his legacy as Japan’s greatest-ever boxer by becoming a two-division undisputed champion, while Nakatani seeks to dethrone him and claim the sport’s pound-for-pound crown. The event will stream live on Lemino pay-per-view in Japan, with U.S. distribution still to be announced, and is expected to break domestic boxing revenue records. Promoter Hideyuki Ohashi has also confirmed nationwide cinema broadcasts to accommodate overwhelming demand.

Located in Yokohama, Ohashi Boxing Gym has become Japan’s premier boxing institution. Founded in 1994 by Hideyuki Ohashi, a former two-division world champion, the gym is widely regarded as the country’s most successful modern training stable.

Ohashi’s transition from fighter to founder was immediate. After an eight-year career that included seven world title fights against legends such as Ricardo López, Jung Koo Chang, and Chana Porpaoin, he retired at 27 in February 1994 due to a detached retina. On that same day, exactly four years after winning his first WBC title, he announced plans to open a gym in his hometown.

His approach broke traditional Japanese boxing norms. By allowing amateurs and professionals to train together and embracing losses as part of development, Ohashi built a fighter-first culture that quickly produced elite talent. Within a decade, the gym had transformed into a national powerhouse.

Beyond Naoya Inoue, Ohashi Gym has developed a remarkable roster of world champions. Takuma Inoue, 21–2, 5Ko’s, its current bantamweight titleholder, captured the WBC belt on November 24, 2024, with a unanimous decision over Tenshin Nasukawa. His reign marks a redemption arc following his loss to Seiya Tsutsumi in October 2024.

The gym’s lineage also includes Kenshiro Teraji (former unified light flyweight champion), Ginjiro Shigeoka (IBF minimumweight champion), Seigo Yuri Akui (WBA flyweight champion), and Kosei Tanaka, a historic four-division champion.

Additionally, Akira Yaegashi, a legendary three-division warrior known for his unforgettable battles, spent his prime years at Ohashi, further cementing the gym’s reputation as a home for elite fighters and future Hall of Famers.

May 2, 2026, is more than just a fight night—it is a defining moment for Japanese boxing, where legacy, rivalry, and national pride converge on the sport’s grandest domestic stage.