Arturo Gatti, the Canada boxer, is not listed in the latest monthly rankings, but has previous ranking records, with the latest entry from March 2007 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 | May 2000 | March 2007 | 2 years 3 months |
| Super Lightweight | October 1999 | January 2006 | 4 years 7 months |
| Lightweight | February 1998 | August 1999 | 1 year 7 months |
| Super Featherweight | June 1994 | January 1998 | 3 years 8 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.