Anyone in the Yale community can join in on the fun, including undergraduates, graduate students, postdocs, professors and any other staff members. Leadership positions are limited to undergraduates. Yale Club Gymnastics is co-ed.
The Yale Club Sports webpage states:
“Club sports offer the advantages of student leadership, flexibility, and non-regimentation. Clubs are open to all Yale undergraduate and graduate students (with a required ratio of 3:1 or greater); a few also accept staff, faculty, and alumni as ‘assistants.’ And most clubs are coed.”