Following the example of boxing, most lucha libre's singles championships are based around different weight classes. The Box Y Lucha commissions codified these weight limits in their regulations, and would not wrestlers compete for championships outside of their weight class.
|Division||Spanish||Limit kg||pounds||Major Titles||Notes|
|Feather||Pluma||63||139||Mex Nat UWA|
|Light||Ligero||70||154||Mex Nat UWA WWA IWRG NWA Mex|
|Super Light||Super Ligero||~74||~163||CMLL|
|Welter||Welter||78||172||Mex Nat NWA CMLL UWA WWA IWRG|
|Super Welter||Super Welter||82||181||IWRG|
|Middle||Medio||87||192||Mex Nat NWA CMLL UWA WWA IWRG|
|Junior Light Heavy (Super Middle)||Semicompleto Junior (Super Medio)||94||207||UWA WWA|
|Light Heavy||Semicompleto||97||214||Mex Nat NWA CMLL UWA WWA WWF|
|Cruiser (Junior Heavy)||Crucero (Completo Junior, Junior de Completo)||107||231||Mex Nat AAA NWA Inter UWA WWA||1|
|Heavy||Completo||97~||214~||Mex Nat NWA CMLL AAA UWA WWA IWRG||2|
- In the mid 80s, the Cruiserweight class was between 97 and 107 kg
- Heavyweight championships have a minimum weight, all others are maximum.
- Titles which include Super in their name indicate a higher weight limit, in between the established normal titles.
- Junior is the opposite, a lesser weight limit than standard for that division.
In modern lucha libre, most commissions will only prevent titles matches where there are vast mismatches in weights, and the UWA and WWA championships appear to be completely unregulated. It's been said that in previous decades, it was not uncommon for promoters to offer commissions a bribe/fine to overlook wrestlers being slightly over the weight limit.
While not a weight limit, there was at one time a height limit, or dividing line, to determine wrestlers who were minis and those who were normal wrestlers. Wrestlers had to be over 5 ft /152 cm to wrestle for the general titles. Any shorter would wrestle in the mini division. Like all other the divisions, this is no longer strict, and there are many rudo minis who are actually a couple of inches over the five foot mark (the better to bully the smaller tecnico minis.)