This is the most elegant solution, but it's also functionally equivalent to "women can't do high level sports anymore"

I feel like women's sports is extremely cursed - a sporting competition with a handicap, except the handicap is not specified in the rules but is instead a randomly distributed quirk of biology, meaning that people have to judge who does or does not have it, except that the handicap is also an integral part of a person's identity...

(no I don't mean to say being female is a disability, the context is sports)

That would be the end of females in the Olympics. Male High School Athletes beat Female Olympians in most events:

https://boysvswomen.com

Wow that website is incredible!

Yeah it definitely destroys my little thought :D.

They're already in an arms race about performance enhancing drugs. And even without those, there are artificial limitations like age in women's gymnastics, because of the damage it does. Football players are grappling with decades of head injuries.

If you want to know the very best a human can do, you will destroy them. It's just not a question we can safely know the answer to.

So it's never really going to be fair, and we need to ask a different question. Exactly what that question is remains to be seen.