Samat used the entire ring to circle out of harm’s way but Cuello caught up with him in the fourth, landing a series of powerful lefts to the Thai’s head.
The Thai tried everything to stop Cuello’s attack in the fifth to eighth rounds but got trapped in a corner in the ninth and absorbed a hail of punches, forcing referee Bruce McTavish to stop the fight.
Denver Cuello, 24, suffered a loss by disqualification in his fight against Juan Hernandez last year.
Undefeated superbantamweight Ernie Sanchez beat Jog Alim via an eighth round TKO in the main supporting bout.
Alim hit the deck in the opening round but slowly worked his way back into the fight, only to fall anew in the eighth after a series of shots by Sanchez.
Denver Cuello's photo courtesy of Google Images