John Riel Casimero is ranked #4 in the WBO Super Bantamweight rankings, and is also listed at IBF #10. He moved up 2 places from #6 with the WBO in June 2026.
Summary from monthly sanctioning-body lists in our database (not a fight record).
| Division | First entered rankings | Most recently in rankings | Time ranked |
|---|---|---|---|
| Super Bantamweight | December 2022 | June 2026 | 3 years |
| Bantamweight | February 2019 | September 2022 | 3 years 7 months |
| Super Flyweight | December 2016 | February 2019 | 1 year 6 months |
| Flyweight | December 2011 | March 2017 | 3 years 1 month |
| Light Flyweight | October 2008 | November 2014 | 6 years 2 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.