Carlston Harris vs Santiago Ponzinibbio — Fight recap

Santiago Ponzinibbio defeated Carlston Harris by KO/TKO in the third round at 3:13 on January 11, 2025, with referee Kerry Hatley officiating. Harris landed 73 significant strikes on 37% accuracy but struggled with takedown execution, going 0-for-5 from the mat and managing only 17 seconds of control time.

Ponzinibbio countered with 76 significant strikes at a superior 43% clip, controlling the center and accumulating 38 seconds of cage control while also absorbing a knockdown but recovering decisively. The Argentine striker's head-strike output of 57 landed punches proved more effective than Harris's 40, setting up the finish in the third.

Harris's inability to secure takedowns and his lower striking efficiency left him vulnerable to Ponzinibbio's sustained pressure, which culminated in the knockout. The victory positions Ponzinibbio as a relevant welterweight contender while Harris faces questions about his grappling setup against elite strikers.