Taimu Hisai turned a short-notice assignment into the harshest image from KNOCK OUT 68, stopping Sitthichai Sitsongpeenong with a second-round uppercut in Yokohama, Japan. KNOCK OUT lists Hisai’s result over Sitthichai as a knockout on the 2026年09月05日 Yokohama Buntai card, while the bout record lists the finish at 1:47 of Round 2.
The finish adds another major result to a busy striking weekend after GLORY’s featherweight title schedule and Chico Kwasi’s GLORY 109 title defense kept kickboxing in the news cycle. Hisai entered as a late replacement and fought above his usual 65-kilogram class, then produced the left uppercut that sent Sitthichai down face-first.
KNOCK OUT highlighted the result from its official account after the event.
Hisai Lands A Short-Notice Statement Finish
The clip of the finishing sequence shows Hisai stepping in as Sitthichai moves forward, landing the uppercut cleanly, and watching the referee rush across the ring as Sitthichai hits the canvas. The result is notable because Sitthichai built his reputation as a former GLORY lightweight champion and Lumpinee Stadium welterweight champion before his recent skid across major striking promotions.
Hisai’s official KNOCK OUT profile now lists him at 30 fights, 21 wins, eight knockouts, seven losses, and two draws. The promotion also lists him as a former KNOCK OUT-RED lightweight champion, a former KNOCK OUT-RED super featherweight champion, and a former KNOCK OUT-BLACK champion at both super featherweight and lightweight.
The knockout gives KNOCK OUT a viral finish from a veteran-versus-riser matchup rather than a routine result line. For readers tracking rules and style differences across striking sports, Muay Thai and kickboxing still split key details around stance, clinch work, and scoring, but this one came down to a clean boxing shot inside a kickboxing ring.
