Humberto Sierra, the Cuba boxer, is not listed in the latest monthly rankings, but has previous ranking records, with the latest entry from March 1948 in the Featherweight division.
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Humberto Sierra ranking historyOlder months
Humberto Sierra, the Cuba boxer, is not listed in the latest monthly rankings, but has previous ranking records, with the latest entry from March 1948 in the 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 |
|---|---|---|---|
| Featherweight | July 1947 | March 1948 | 7 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.
