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.
Women (and trans women) naturally carry a higher body fat percentage than men (Incl trans men) a “male” athlete can more safely and more easily carry a lower body fat % and therefore more muscle per kilo. So the weight classes wouldnt be able to be 1:1 if you wanted a level playing field.
There is still the inherent biological advantage in being born male and going through male puberty and developing a male muscular/skeletal system before transitioning. Very difficult to rule around every nuance of this though.
This is exactly right and what many people fail to understand. In studies, even after 3+ years of hormone therapy, trans-women still have significantly more muscle tissue than CIS women.