- Home Academics Admissions Athletics Bookstore Careers Guest House Library PrinCam Student Life Athletics Home Schedules Coaches Records Press Releases Support Principia athletics. Principia College Athletics Principia is a NCAA Division III school and is a member of the St. Louis Intercollegiate Athletic Conference (SLIAC). Four out of every ten students at Principia play a varsity sport. Since ...www.prin.edu/college/athletics