Obviously this won’t work for all sports, but things like football, track, soccer, it would allow for de-gendered team, even allowing athletes with the skills but not the genetically-endowed physical attributes to have a place to play.
Note: I know very little about sports and being on a sports team, so please point out anything that doesn’t make sense.
I had an idea for a fantasy setting where a multiracial society played a lacrosse-like sport, and in order for halflings and dragonkin to be able to play against each other fairly they had a rule about the size and length of your stick being inversely proportional to your height. I’ve always felt like we could get something similar going for a lot of other sports to put top-level athletes off different sexes and body types on the same level and have it purely come down to skill - and non-contact sports honestly have no excuse not to experiment with their rules in this way.
Yeah, if one height/weight class gets dominant that class should be nerfed like in every competitive esport