Come cheer on the Rodeo City Rollergirls as we take on Spokane's Snake Pit Derby Dames. Doors open at 3:30 p.m. Bout starts at 4 p.m on Saturday, April 7th. at Ellensburg High School. Tickets $5 in advance at brownpapertickets.com or $10 at the door. This is a family-friendly event.