Brian Viloria is outside the current major-body rankings. His most recent ranking was July 2018 in the Flyweight division.
Summary from monthly sanctioning-body lists in our database (not a fight record).
| Division | First entered rankings | Most recently in rankings | Time ranked |
|---|---|---|---|
| Bantamweight | May 2004 | May 2004 | 1 month |
| Flyweight | November 2002 | July 2018 | 10 years 6 months |
| Light Flyweight | September 2005 | June 2011 | 5 years 10 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.