Kenshiro Teraji barely retains his WBA and WBC light flyweight titles, while fellow Japanese boxer Seigo Yuri Akui took the WBA flyweight belt from a previously undefeated Ukrainian opponent.
Japan's Masataka Taniguchi relinquishes his World Boxing Organization minimumweight championship to Filipino challenger Melvin Jerusalem via a second-round technical knockout.
Having become the ninth fighter to unify all major titles since boxing's four-belt era began in 2004, Japan's Naoya Inoue is looking to go one better as the first to accomplish the feat in two weight classes.