The 26 year old won the title back in May of 2014 and her 3 year reign has seen her defeating the likes of Katia Gutierrez, Masae Akitaya, Nancy Franco and Mari Ando and really showing that she is a world class fighter. Although her record is less than perfect she has gone unbeaten for more than 4 years, and is 8-0-1 (3) since her last loss, which came when she was just 22. Kuroki has really matured in that time to become a good boxer-mover and she has shown her toughness, her ability and almost a new found confidence and self belief.
Despite being on an impressive run Kuroki perhaps lacks a real defining win. She has good wins, Franco and Gutierrez are very good wins in fact, but there is no monster win on her record and nothing that really has gone and told the division “I am the queen”, a win over Koseki would do that, and would really allow Kuroki to make a statement.
Whilst Kuroki is looking for a defining win the same can't be said of Koseki who has had an incredible career. The 35 year old from Tokyo is riding a 24 fight unbeaten run which has seen her record 17 world title defense, unify the WBC and WBA title and holds wins over almost every notable fighter in the division, such as Ayaka Miyao, Nao Ikeyama and Saemi Hanagata. She has been a staple of the 102lb division almost a decade and both of her losses came in very close bouts in Thailand.
In the ring Koseki is a tough as old boots fighter with a brawling action style. She comes to fight and presses the bout, with a combination of rough tactics, under-rated boxing skills, great energy and fantastic use of being big and strong. Although she's moving up in weight here, by 3lbs, she is a very big Atomweight and she has looked bigger than former Light Flyweight champion Naoya Shibata, in fact she looks like she would be very competitive fighting at Flyweight, if not Super Flyweight.
To date Kuroki has had things mostly her own way, at least in the last few years. Here however she's in with a fighter who will be coming with a point to prove, and a statement to make, a fighter given a chance to become a 2 weight champion. Kuroki will be the home fighter, the fighter who is naturally bigger and the fighter who will be defending her title, she will however be up against an elite level fighter, and we suspect Koseki's aggression and world class energy and toughness will simply be too much for the champion. Koruoki will have moments will her skills, but will be out worked, and out pointed.