The University of Iowa Alumni Association's S.T.A.T. (Students Today, Alumni Tomorrow) Ambassadors, will host the Nearly Naked Mile at 3 p.m. Saturday, March 24, starting at Gibson Square, located on the corner of Burlington and Madison streets.

Costumes are encouraged and runners may dress up — or down — as much as they chose. Organizers will monitor the levels of appropriateness of the runners’ attire. Prizes will be awarded in categories such as best costume and most enthusiasm.

There is no registration fee, but runners must donate at least one piece of clothing to participate in the race. All donations will be given to United Action for Youth, an Iowa City nonprofit organization offering youth development, counseling, and health programs.

Check-in begins at 2 p.m. at Gibson Square. Runners will go west on Burlington Street, turn right onto Riverside Drive, turn right onto Iowa Avenue, and finish by turning onto Madison Street and proceeding back to Gibson Square.

Registration is open at www.iowalum.com/stat/events/nnm/rsvp. Registrations will also be accepted the day of the race.