On September 28th, 2025, Korakuen Hall in Tokyo played host to “NJKF – Challenger 10,” featuring an action-packed card highlighted by a WBC MuayThai Japan Lightweight Title fight.
Reigning champion Hiro Yamato made his first title defense against challenger Katsuji, securing victory by majority decision. The judges’ scorecards read 48-47, 47-47, and 49-46, confirming Yamato’s successful defense in a tightly contested bout.
The fight showcased Yamato’s composure and technical skill under pressure as he edged out his opponent in front of an enthusiastic Tokyo crowd. With this victory, Hiro Yamato not only retained his belt but also reinforced his status as one of Japan’s premier MuayThai champions.
