In which sports could women and men compete against each other?

In both women’s and men’s sports, both genders are kept apart. I’m talking about physical sports and not things like darts etc. So in which physical sports do you feel women and men could actually compete against each another?

In my martial arts class girls are only allowed to spar and compete against guys when higher ranked girls are paired up against lower ranked guys, where both head and groin guards are not allowed. This allows for a much fairer fight, but at the highest levels girls and guys are still kept apart.

So which sports could girls and guys compete against each other, whether it be under existing or modified rules to balance the sexes? Thank you.
In which sports could women and men compete against each other?
Post Opinion