What happened
Guts Ishimatsu, a former WBC World Lightweight boxing champion who became one of Japan's most recognizable TV personalities, has died at the age of 76. According to his agency, Guts Enterprise, he died of pneumonia at a Tokyo hospital on June 2, 2026, and the death was made public on June 11, 2026. The statement ended with the phrase Japanese audiences most associate with him: 'When you make a guts pose, please remember Guts Ishimatsu.
OK Makiba!' ('OK Makiba' is his trademark nonsense catchphrase, roughly the equivalent of an upbeat 'all good!')
Why it is trending now
Ishimatsu won the WBC World Lightweight title in 1974 and successfully defended it five times. He is widely credited in Japan as the origin of the 'guts pose' — the now-universal raised-fist celebration after a win. After retiring from boxing in 1987, he reinvented himself as an actor and TV talent, appearing in landmark dramas and becoming a fixture of variety shows (a Japanese TV format mixing talk, games, and comedy).
The word trending alongside his name is 'OK Makiba' precisely because his own agency closed the official obituary with it — a poignant detail that spread quickly across Japanese social media.
How fans reacted
Fans posted tributes built around the catchphrase itself: 'I'll never hear OK Makiba again' and 'his legendary line OK Makiba will live forever.' Others reminded younger viewers who knew him mainly from television that he was a genuine boxing great, noting the five title defenses and that the guts pose itself is named after him.
What to watch next:
Expect Japanese broadcasters and boxing organizations to air retrospectives of his title fights and variety-show appearances, and for the 'OK Makiba' phrase to keep circulating as a fond shorthand for remembering him. Details about funeral arrangements had not been disclosed in the announced statement.

ガッツ石松さんが肺炎により死去、76歳 SNSで発表 声明の最後は「OK牧場!」 #ガッツ石松さん #肺炎
【訃報】 ガッツ石松さん死去 76歳 所属事務所は 「弊社ガッツ石松が令和8年6月2日(76歳)、肺炎のため都内病院にて永眠いたしました」 「ガッツポーズをするたびに、ガッツ石松を想い出していただければ幸いです。OK牧場!」 とガッツさんの決め台詞を添えてコメント。
ガッツさんがもうOK牧場!と 教えてくれているのかも😎 …ご冥福をお祈りします
ガッツ石松さんといえばOK牧場!が全国的に知られているけど やっぱ栃木県民としては、 「日光の手前!」が秀逸だったよな