Teruo Kosaka, the Japan boxer, is not listed in the latest monthly rankings, but has previous ranking records, with the latest entry from April 1966 in the Super Featherweight division.
Summary from monthly sanctioning-body lists in our database (not a fight record).
| Division | First entered rankings | Most recently in rankings | Time ranked |
|---|---|---|---|
| Lightweight | May 1962 | July 1964 | 1 year 10 months |
| Super Featherweight | August 1964 | April 1966 | 1 year 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.
