A woman passed out while taking part in the Chapman University Undie Run Wednesday.
Orange County Fire Department provided aid, and no other incidents were reported during the now traditional event.
Several hundred students participated in the fun run, which takes place on during finals week.
The run starts on campus and continues to the Orange Circle, then returns back to campus.
Local news from across Southern California
No arrests were reported at the event, which is not officially sanctioned by the university.