In the preliminary bouts the card saw 4 round rounds bouts with a win for Yuya Kinjo (3-2) who claimed a majority decision over Shogo Shigyo (1-4-1) and a majority draw between Nao Takahashi (1-1-1, 1) and Osu Inoue (3-1-1, 1).
In 8 round action we had the three Eto brothers in action as Shingo Eto (11-2-1, 7), Taiki Eto (11-2, 8) and Koki Eto (12-2-1, 10) all scored quick victories. Koki scored the quickest victory amongst the brothers taking out Thai debutant Yodkhunkrai Sor Laddagym (0-1) in the second round whilst his twin brother, Shingo, stopped Superjames Singmanasak (3-11, 2) in the 5th.
The most notable victory for an Eto brother was for Taiki who bounced back well from losing to Filipino Arthur Villanueva in December by stopping Indonesian Ali Rochmad (19-2, 13) in the 3rd round. Taiki is generally regarded as the most promising of the 3 Eto brothers and despite being the oldest of the three he's also been the most well matched with bouts against Villanueva, Rochmad, Isack Junior and Konosuke Tomiyama.
Also in 8 round action was veteran female Noriko Tsunoda (6-3, 4) who was unsuccessful in an attempt to defend the OPBF Female Super Flyweight title. Tsunoda, who had claimed the title last November was stopped by the much younger Tomoko Kawanishi (7-1, 3) whilst attempting to defend the title for the first time.
The result may well spell the end for the 42 year old Tsunoda though for the 26 year old Kawanishi this could help act as a launch pad who will be looking to move in to title contention sooner rather than later.
The main event was also Female action in the Super Flyweight division though as WBA champion Naoko Yamaguchi (21-3-3, 17) retained her title thanks to a stoppage victory over Italian challenger Loredana Piazza (9-2, 4) who suffered her first stoppage loss and her second loss in world title bouts.
Although Yamaguchi is just weeks away from her 35th birthday the diminutive fighter looks to be in the form of her life with victories over Tenkai Tsunami and now Piazza both in the last 12 months. A bout between Yamaguchi and Kawanishi seems the logical step but it's fair to say that Kawanishi's handlers may wish to avoid the hard hitting champion for now.