If people really want to differentiate between men and women for some reason I can't understand they could still say themselves 'top person identifying as a woman'. Just don't make it part of the official system so other people can ignore it if they want.

You could be the 'only woman in level 4 sprinting'.

And wouldn't it be better for women - if they're able to push beyond other women and also compete with men? There would certainly be men in lower tiers than the top tier women.