If the Olympics/WCs were set up this way you would see feminists whining that they are oppressed by not having a separate division and that it isn't equal that males always stomp them, every time.
If women happened to be faster than men there would only be one division open to both men & women[/quote]
If women were (not just faster, but also) superior to men in every physical measure you can think of, there would be separate categories for men and women. Also, the entire history of civilization would be different, but there would still be separate categories. Nice try.