Jack Willis has ranking history, with the latest entry from July 1932 in the Lightweight division.
Summary from monthly sanctioning-body lists in our database (not a fight record).
| Division | First entered rankings | Most recently in rankings | Time ranked |
|---|---|---|---|
| Middleweight | February 1928 | November 1928 | 3 months |
| Lightweight | July 1932 | July 1932 | 1 month |
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.