WBO Super Flyweight champion Naoya Inoue moved to 12-0 with a sixth round stoppage win over former world title holder Kohei Kono at the Ariake Colosseum in Tokyo, Japan.
The 23 year-old, who is nominated for WBN’s Young Fighter of the Year for a third year in a row having won the award in 2014, remained undefeated with a fourth successful defence of his belt.
Inoue has won world championships in two weight classes already in his short career and could move up to challenge for a third in 2017.
In the co-feature, IBF Light Flyweight title holder Akira Yaegashi defeated challenger Wittawas Basapean in the final round of twelve to retain his 108 pound crown.
Yaegashi, 33, was in dominant form as the three-weight ruler softened up the Thai fighter before completing the job with just under 50 seconds left.
On the undercard, Ryo Matsumoto halted Victor Lopez in six to push his C.V to 18-1, whilst light flyweight Ryuji Hara scored an eight-round decision over Hiroya Yamamoto.
Ex-amateur star and super middleweight contender Ryota Murata is still undefeated following a three round knockout of Bruno Sandoval.
Headliner Inoue watched on as super lightweight cousin Koki Inoue made it six wins on the spin as a pro by taking out Futoshi Usami in the third session, whilst featherweight Satoshi Shimizu completed the card by moving to 2-0.