ONE Friday Fights 177 Main Event Result: Jack Erupts In The Final Round To Turn The Tables On Isannuea
Two late knockdowns earned the 31-year-old a victorious return to ONE Championship.
By Kriel Ibarrola
Nov 6, 2026, 17:16 UTC
Jack Siatanyokkrok PK showed in his ONE return that he has lost none of his touch, erupting in the final round to turn a likely deficit into a unanimous decision over Isannuea Sor Sasiwat in the main event of ONE Friday Fights 177.
Their bantamweight Muay Thai showdown capped a stacked Asia primetime night on Friday, November 6, that also saw Tye Ruotolo submit Christian “The Warrior” Lee to become the newest two-sport ONE World Champion in the main event of the subscriber-exclusive showcase The Inner Circle 37.
ONE Fight Night 49: Gabriel vs. Magomedov on Prime Video will complete the triple-header weekend in U.S. primetime on the same hallowed grounds in less than 24 hours.
The shootout both finishers had predicted opened as a tense, tactical duel, with each man probing for openings. Jack chopped away at Isannuea’s calf with low kicks, but the 22-year-old protected his lead leg with smart movement and countered inside to the body.
A brief clinch gave Jack room for short uppercuts and an elbow to the head, yet Isannuea had the last word, closing the frame with cross combinations set up behind his jab.
The two covered the distance so fast in the second stanza that they were butting heads almost as soon as the bell rang. Isannuea turned up the volume with blistering four-punch combinations, while the returning Thai slugger countered with single shots that landed clean. Midway through the frame, a tomahawk elbow from Isannuea cracked the 31-year-old’s guard.
Aware he was likely down two rounds, Jack flipped a switch in the final frame. Going southpaw, the PK Saenchai Muaythaigym representative used a probing jab to gauge the distance before uncorking a right hook missile that landed flush on the button and dropped Isannuea near the ropes.
Isannuea rose on shaky legs and composed himself, but a barrage of punches sent him back to the canvas, and Jack kept the pressure on. Somehow, Isannuea stayed upright to hear the final bell.
Those two knockdowns changed the entire fight. The unanimous decision nod earned Jack his third promotional triumph and pushed his overall record to 73-30.