Robert Guerrero is outside the current major-body rankings. His most recent ranking was September 2024 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 | August 2012 | September 2024 | 3 years 5 months |
| Lightweight | March 2010 | March 2012 | 2 years |
| Super Featherweight | December 2008 | April 2010 | 1 year 5 months |
| Featherweight | November 2004 | June 2008 | 3 years 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.