The Dirty U combines your love for Arizona State University with your love for being active, and roles it all up into a colorful 5K with color stations that represent your school colors and school pride. The Dirty U is a fan run / walk organized by fans just like you! Remember, what happens at The Dirty U, stays at The Dirty U! Late registration and warm up begins at 8a.m on Saturday, October 17th. Expect to leave with an overwhelming sense of school pride! Expect the Fan-Run celebrations to go on rain or shine.