Former world lightweight boxing champion Guts Ishimatsu, whose real name was Yuji Suzuki, died on June 2, 2026, at a hospital in Tokyo, Japan. His agency announced his passing on Thursday, June 11, citing pneumonia as the cause of death. He was 76 years old.
The agency stated that the funeral was held privately with only close relatives in attendance, following the strong wishes of Yuji Suzuki and his family. Currently, no plans for a public memorial service have been announced. His agency noted that being loved by many was his greatest pride.
Guts Ishimatsu was a cornerstone of Japanese boxing history, famously known for his “phantom right” punch and exuberant victory celebrations. After knocking out WBC champion Rodolfo “Gato” González in 1974, his celebratory stance led to the coining of the term “guts pose” in Japan. April 11 is now celebrated annually as “Guts Pose Day.”
From the lightweight division to global recognition
Born in Kiyosu Village on June 5, 1949, Yuji Suzuki made his professional debut in 1966 at the age of 17. He eventually adopted the name “Guts Ishimatsu” to inspire more courage in his fighting style. He famously faced some of the greatest names in the sport, including a 1973 bout against Roberto Duran in Panama, which he lost by 10th-round stoppage.
And while heavy hitters like Duran often overshadowed their peers, Ishimatsu’s resilience made him a national hero. Duran himself later identified Ken Buchanan as his most astute rival, another legendary figure whom Ishimatsu would eventually face in the ring. These high-level encounters highlighed Ishimatsu’s standing among the elite lightweights of the 1970s.
He reached the pinnacle of the sport in April 1974 by knocking out Rodolfo “Gato” González in the eighth round to win the WBC belt. This title win came in his third attempt at a world crown. It remains one of the most celebrated moments in Japanese boxing history due to the massive underdog status he carried into the fight.
Successful title defenses and career record
Following his championship win, Ishimatsu proved his longevity by successfully defending the world title five consecutive times. These defenses included a 12th-round knockout in a rematch with Rodolfo González and a 15-round unanimous decision victory over former champion Ken Buchanan. These victories solidified his reputation as a technically proficient fighter with immense stamina.
His reign at the top eventually saw him travel to Puerto Rico in May 1976, where he lost to Esteban De Jesus by a wide unanimous decision. He subsequently moved up to the junior welterweight division in 1977. In that weight class, he challenged Saensak Muangsurin but was stopped in the sixth round of their title bout.
He retired from professional boxing in 1978 after losing a non-title match on June 20. He ended his career with a professional record of 31 wins, 14 losses, and 6 draws across 51 total fights. His 17 knockouts remain a testament to the power of his celebrated “phantom right” hand.
Life as a tarento and cultural icon
Guts Ishimatsu transitioned seamlessly into a career as an entertainer and actor, becoming a beloved “tarento” on Japanese television. He was known for his catchphrase “OK Bokujo,” roughly translated as “Everything is all right.” This humorous persona often contrasted with his feared reputation inside the boxing ring.
He appeared in several prominent films and television dramas, most notably the NHK series “Oshin.” His acting portfolio also included roles in major international productions such as “Empire of the Sun” and “Black Rain.” His colleagues frequently praised his warmth and professionalism on set, regardless of the size of the production.
Actor Ken Watanabe shared a tribute on social media, recalling his time working with the former champion on the drama “Hanekoma.” Watanabe remembered Ishimatsu’s “mysterious smile” and how the boxer encouraged him before a difficult scene involving a jump into a freezing lake. Watanabe described him as a warm person who left a lasting impression on everyone he met.
A prepared legacy in Tochigi Prefecture
Long before his final illness, Ishimatsu made extensive preparations for his legacy in his home prefecture of Tochigi. Approximately 20 years ago, he built a large family tomb in the Satsuki Reien cemetery in Kanuma. The site features the inscription “The Tomb of the Guts Family” and is adorned with stone carvings of boxing gloves and a championship belt.
This forward-thinking approach was typical of the man who also attempted a career in the House of Representatives in 1996. Although his political bid was unsuccessful, he remained a public figure of significant influence. He shifted back to boxing as a commentator, where he was respected for his intelligent analysis and deep knowledge of the sport.
His agency’s final message to fans encouraged them to keep his spirit alive through his most famous contribution to culture. “We hope that you will remember Guts Ishimatsu whenever you make a ‘Guts Pose,'” they stated. For many in Japan, he will be remembered as much for his infectious personality as for his five successful world title defenses.
