Categorias de peso de acuerdo a la FEMEXAM, Association of
Boxing Commissions y Unified Rules of Mixed Martial Arts.

 
CATEGORIA PESO LIMITE CAMPEON MUNDIAL
Gallo 135 lbs. (61.2kg) Miguel Torres (WEC)
Pluma 145 lbs. (65.8kg) Uriah Faber (WEC)
Ligero 155 lbs. (70.3kg) BJ Penn (UFC)
Welter 170 lbs. (77.1kg) Georges St. Pierre (UFC)
Medio 185 lbs. (83.9kg) Anderson Silva (UFC)
Semicompleto 205 lbs. (93kg) Forrest Griffin (UFC)
Completo 205.1+ lbs. (93.1+kg) Fedor Emeliananko (WAMMA)