In the current world rankings, Kosuke Tomioka is ranked #4 in the WBO Flyweight rankings, and is also listed at IBF #5, WBA #5 and WBC #21.
Summary from monthly sanctioning-body lists in our database (not a fight record).
| Division | First entered rankings | Most recently in rankings | Time ranked |
|---|---|---|---|
| Flyweight | July 2026 | September 2026 | 3 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.
