Keisuke Yokoyama is outside the current major-body rankings. His most recent ranking was November 2001 in the Light Flyweight division.
Summary from monthly sanctioning-body lists in our database (not a fight record).
| Division | First entered rankings | Most recently in rankings | Time ranked |
|---|---|---|---|
| Light Flyweight | November 2001 | November 2001 | 1 month |
| Minimumweight | September 2001 | October 2001 | 2 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.
