Of the two fighters it's Tsunami who is the more proven and experienced, which should be no real surprise given she has 7 times more fighters under her belt. In fact not only that but she also has more world title fights than Minowa has total professional bouts. She might also have more losses, but when you get a fighter like Tsunami the losses only tell a fraction of the real story, and don't have context. The real context to those losses is that she has fought a real who's who of the female boxing world and suffered losses to world class fighters like Naoko Yamaguchi, Janeth Perez, Mariana Juarez, Jessica Chavez, Zunila Munoz, Arely Mucino and Carolina Rodriguez. She could have padded her record, but instead fought a who's who, often above her natural weight.
Whilst it's easy to focus on the losses of Tsunami we can't ignore the fact she's a formerworld champion, having held the WBA female Super Flyweight title from February 2009 to July 2012. During her reign she made 5 defenses, beating the likes of Kayoko Ebata and Rie Fujimoto ahd she showed her world class ability.
In the ring Tsunami is an all action fighter. She is technically limit, but has a great engine, a fantastic work rate, a gritty determinedness, a solid toughness and always makes for good action bouts. She lacks the speed or skills to really test the very best, hence her double digit losses, but is a hard night for pretty much anyone, and could easily have had a better looking record with just a tiny bit of good luck.
Whilst Tsunami has fought almost everyone of note the same clearly can't be said of Minowa, who has only been a professional for about 18 months. So far she has faced very limited opponents from across Thailand, Korea and the Philippines and really not been tested that much. The one test she had came from Carleans Rivas, who Tsunami stopped in 2, and even then she took a clear 8 round decision over the Filipino. In the ring Minowa is an ultra-aggressive fighter who looks to stop every opponent as quickly as possible. So far it has seen her stop 4 of her first 5 opponents and she has racked up only 18 rounds in her first 5 bouts, but she has looked very aggressive and very exciting so far.
Minowa has impressed, but also left us with a lot of questions. We don't know what she's like in the later rounds, how her stamina holds up, what she's like under pressure, how copes with a step up in class and a lot of other questions. From what we've seen, and from what we know of her amateur background, we expect that she'll be able to step up and rise to the challenge, but this is a huge step up in class.
The bout really comes down to whether Minowa can fight at a high pace for 10 rounds, whether she can avoid the heavy shots from Tsunami and whether she has the skills to out box someone of Tsunami's ability and experience. The step up is what makes this so interesting and such a hard to call bout. We edge towards Minowa having the movement and amateur background to out manoeuvre, though can certainly imagine Tsunami's pressure getting to Minowa and the veteran taking a notable win over her younger foe.