This is a constant point of contention. The workaround (at least in BJJ that I know of) generally is to have "open weight" fights in addition to weight-class re

This is a constant point of contention. The workaround (at least in BJJ that I know of) generally is to have "open weight" fights in addition to weight-class restricted ones. Everyone's happy usually. Now if they have open sex fights then we can see the underfed ballerina vs. a sumo fighter! It's not as common in MMA, I think. BJJ is often thought to favor the smaller, weaker player but with the less strict ruleset in MMA, open fights aren't as "fair", I think. Physics, basically. Skill level equal, a larger and more muscular and well-conditioned athlete will usually win. An enjoyable exception to this is the classic BJJ vs. wrestling contest in the early UFCs between Royce Gracie, a 6'1" 180lb guy vs. a seeming bear of a man with proven wrestling skills in 6'2' 250lb Dan Severn. If you're not a fight geek (if you are, you surely already know about these 2) it may be kind of boring to watch and more interesting to read or watch a well-informed analysis with pictures and clips, sort of like a "Gracie Breakdown".