The penultimate world title card of the year took place on December 30 at the Bunka Gym in Yokohama, Japan and saw Ken Shiro keep a firm grip of his WBC light-flyweight title.
Shiro improved to 12-0 as a pro with a fourth round stoppage of Gilberto Pedraza, leading to the challenger dropping a fourth loss of his 24-fight career.
In the main event, Naoya Inoue took Yoan Boyeaux out in the third to successfully defend his WBO super flyweight strap.
Prior to the win, Inoue informed of his decision to move up to bantamweight in a bid to win yet another world title in a different weight division.
Now 15-0 with 13 early finishes, Inoue has already reigned in two classes and fully intends to be in the mix at 118 pounds in the New Year.
On the undercard, featherweight Satoshi Shimizu stopped Eduardo Mancito in seven rounds, whilst bantamweight Kazuki Nakajima, super lightweight Katsuya Yasuda and flyweight Kazunori Yorimasa all carded decision wins in their respective contests.
Inoue family members Takuma and Koki can both now boast 10-fight winning records at super-bantamweight and super-lightweight respectively after the former out-pointed Kentaro Masuda and the latter halted Dong Hee Kim in the fourth session.