Isiah Thomas is outside the current major-body rankings; their most recent tracked listing was April 2016 in the Cruiserweight division.
Summary from monthly sanctioning-body lists in our database (not a fight record).
| Division | First entered rankings | Most recently in rankings | Time ranked |
|---|---|---|---|
| Cruiserweight | November 2012 | April 2016 | 11 months |
| Light Heavyweight | January 2013 | June 2013 | 6 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.
