At Minimumweight we've lost Kosei Tanaka (previously #3) who is now set to fight for the WBO title at the end of May. That however has helped no other Asian with the space in the top 15 being filled by Carlos Buitrago.
At Light Flyweight we've seen Japanese champion Yu Kimura (#6) move up a place just like Filipino fighter Rene Patilano (#10) and former WBA Minimumweight champion Ryo Miyazaki (#12). The most notable changes however have been the rankings of Myung-Goo Yuh (#13) and Richard Claveras (#14). Last month Yuh was ranked #16 at Super Flyweight whilst Claveras was ranked #26 at Light Flyweight. Whilst Yuh's ranking is a mystery we know that Claveras has been ranked so that he can fight world champion Pedro Guevara later this month.
The Flyweight division has seen a few small changes. The highest one of those has seen Renan Trongco (#5) swap places with Noknoi Sitthiprasert (#6). Lower down the rankings we've seen Rey Megrino (#9) drop a place.
The Super Flyweight rankings have seen Rex Tso (previously #9) removed due to his links to the WBA. Tso's removal from the rankings has allowed Ryo Matsumoto (#10), Arthur Villanueva (#11), Malcolm Tunacao (#12) and Sho Ishida (#14) all to climb one place up the rankings.
In the Bantamweight division we've seen Kazakhstan puncher Zhanat Zhakiyanov (#2) drop a place whilst Ryo Akaho (#11) has moved up a place. We are curious as to why the WBC have ranked both Lee Haskins (#1) and Ryosuke Iwasa (#8) following the announcement that they would be fighting for the interim IBF title later in the year.
At Super Bantamweight we've lost Shingo Wake (previously #2) this has allowed China's Qiu Xiao Jun (#2) to move up a place and also opened up a place for popular Filipino Nonito Donaire (#3) who wasn't ranked a month ago. Lower down the rankings we've seen Yukinori Oguni (#11) drop a place, Shun Kubo (#13) climb a place and Albert Pagara (#15) break into the top 15.
The only change at Featherweight has seen Satoshi Hosono (#10) drop a place.
There is also only a single change of note at Super Featherweight where Jomthong Chuwatana (#8) has moved up a place, despite having signed for a WBA world title fight with “super champion” Takashi Uchiyama.
At Lightweight we've seen OPBF champion Masayoshi Nakatani (#10) fall a single place whilst his former foe Yoshitaka Kato (#12) has climbed a place.
In the Light Welterweight division we've seen Keita Obara (#12) climb up one place.
Unfortunately at Welterweight we've lost Yoshihuro Kamegai (previously #12) following his loss to Alfonso Gomez.
At Light Middleweight we've seen no changes, with Dennis Laurente (#10) remaining where he was. The same applies at Middleweight where Ryota Murata (#7) remains where he was.
There are no ranked Asian in the top 15 of any division above Middleweight, the same as last month.