Legally 'Yes'. I think that the Intramural Sports programs at certain universities are required to allow male students in sports that have no male counterpart. The point is that most males do not seek to compete with women when it comes to athletic endeavors.
I work with a woman who's daughter is on her HS wrestling team. She's actually proud of the fact that her little emancipated princess is "undefeated" because no coach with any sense of decency will let a teenaged boy get in the ring with her. One kid even forfeited a 56-match win streak because of her.