Osaka, Japan – Kazuto Ioka stayed unbeaten and retained his round TKO of Yodgoen Tor Chalermchai on Saturday.
The fight was stopped at the 1:38 mark.
Ioka (9-0, 6 KOs) made his second defense of the title he won in February. He also beat Juan Hernandez in a 12-round unanimous decision in August.
Chalermchai (8-1) was fighting for the first time outside of his native Thailand.