Rungvisai pushed the pace in first while the Nicaraguan started the fight visibly slower than the WBC super-flyweight champion. The Thai landed the better shots and was on the front-foot during the first and second rounds.
Gonzales finally showed up in the third and landed multiple straights that rocked the champion. Though his brief moment of success was short-lived as Rungvisai brutally got payback in the fourth and dropped Gonzales.
The challenger was fighting for survival by now and Rungvisai hammered the final nail with his huge right hand and stopped Gonzales.