Ivan Calderon, the Puerto Rico boxer, is not listed in the latest monthly rankings, but has previous ranking records, with the latest entry from September 2012 in the Minimumweight division.
Summary from monthly sanctioning-body lists in our database (not a fight record).
| Division | First entered rankings | Most recently in rankings | Time ranked |
|---|---|---|---|
| Light Flyweight | September 2007 | September 2011 | 4 years 1 month |
| Minimumweight | October 2001 | September 2012 | 7 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.