Juan Manuel Marquez, the Mexico boxer, is not listed in the latest monthly rankings, but has previous ranking records, with the latest entry from May 2015 in the Welterweight division.
Summary from monthly sanctioning-body lists in our database (not a fight record).
| Division | First entered rankings | Most recently in rankings | Time ranked |
|---|---|---|---|
| Welterweight | December 2012 | May 2015 | 2 years 6 months |
| Super Lightweight | March 2012 | May 2014 | 2 years 3 months |
| Lightweight | August 2008 | March 2012 | 3 years 8 months |
| Super Featherweight | March 2007 | September 2008 | 1 year 7 months |
| Featherweight | May 1996 | March 2007 | 10 years 11 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.