Ryosuke Iwasa has ranking history, with the latest entry from July 2023 in the Bantamweight division.
Summary from monthly sanctioning-body lists in our database (not a fight record).
| Division | First entered rankings | Most recently in rankings | Time ranked |
|---|---|---|---|
| Featherweight | December 2022 | April 2023 | 4 months |
| Super Bantamweight | May 2014 | January 2022 | 7 years 1 month |
| Bantamweight | November 2012 | July 2023 | 3 years 4 months |
Time ranked counts distinct months this fighter appears on a rankings list for that division. If they drop out and return later, months off the ranking lists are not included.