They held the annual ritual of running naked on campus six months early after the school's centennial committee asked them to be part of the planned activities.
The fraternity says it gathered 100 members and alumni for the event, the largest number of naked runners ever.
The participants wore golden masks and wrapped T-shirts around their heads to hide their identities.
They offered roses to dozens of giggling female students who took their pictures as they jogged about half a mile on campus.
