Japanese boxing star Shigetoshi Kotari has died six days after sustaining a severe head injury during a championship bout. The 28-year-old fighter collapsed following his Aug. 2 match against Yamato Hata in Tokyo, which ended in a draw.
Despite undergoing emergency surgery, Kotari succumbed to his injuries on Friday, Aug. 8, leaving the boxing community in shock and mourning.
The Fatal Title Fight
According to the World Boxing Organization (WBO), Kotari lost consciousness during the 12-round OPBF Super Featherweight title match against Hata. The Japan Boxing Commission (JBC) confirmed he was diagnosed with an acute subdural hematoma — a life-threatening brain bleed — and underwent an emergency craniotomy shortly after being rushed to a Tokyo hospital.
The fight, which went the full 12 rounds, was declared a draw, leaving Kotari’s record at eight wins, two draws, and two losses.
A Final Message Before the Match
Just one day before the fight, Kotari shared what would become his final Instagram post — a photo with his opponent during the weigh-in. “Weigh in clear! Finally the time has come. What I’ve been accumulating, bet it all and go win,” he wrote in Japanese. “I will definitely be a champion 🧨🔥 … Your support is greatly appreciated! Stay tuned. Osu.”
The post has since been flooded with tributes from fans and fellow fighters.
Boxing Community Responds and Safety Changes Announced
The WBO issued a heartfelt statement on X (formerly Twitter): “Rest in peace, Shigetoshi Kotari 🕊️. A warrior in the ring. A fighter in spirit. Gone too soon.” The organization extended condolences to Kotari’s family, team, and the Japanese boxing community.
In response to the tragedy, JBC Secretary-General Tsuyoshi Yasukawa announced new safety measures, including reducing OPBF title fights from 12 rounds to 10. The change aims to minimize risk in the wake of Kotari’s fatal injury.