Mizuto Hirota upset lightweight champ Satoru Kitaoka via fourth-round TKO to become the promotion’s new title-holder at Sengoku 9 on Sunday in Saitama, Japan.

The Sengoku Featherweight Grand Prix also came to an underwhelming conclusion at the card, with Masanori Kanehara being crowned the first-ever Sengoku featherweight champ with a split decision victory over Michihiro Omigawa in the tournament final.