Bert Cooper, the United States boxer, is not listed in the latest monthly rankings, but has previous ranking records, with the latest entry from May 1987 in the Heavyweight division.
Summary from monthly sanctioning-body lists in our database (not a fight record).
| Division | First entered rankings | Most recently in rankings | Time ranked |
|---|---|---|---|
| Heavyweight | March 1987 | May 1987 | 3 months |
| Cruiserweight | June 1986 | February 1987 | 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.
