We had the same situation recently with my program. We basically made our men's leagues all open leagues and we kept our women's only and co-rec leagues still. This way, if you have female, or transgender, or gender fluid students, they can play in the open league without feeling excluded. We also allow transgender students to play in whichever league they identify as. We wrote a new gender policy and we put what each league meant on our imleagues page so returning students could easily figure out which leagues they should play in.

@Myers If you could create a report that lists each participant and all the leagues they play in on one sheet, that would save me a ton of time! Our deans of students want the participant listed once and then all the different leagues/sports they played listed next to each participant.