Boomer and Sooner are the two costumed mascots of the University of Oklahoma. They represent the two crème white ponies that pull the Sooner Schooner,[2] a Conestoga wagon across Owen Field in a victory ride after every OU score. Boomer is the blue-eyed horse and Sooner is the brown-eyed Horse. Traditionally, Boomer wears crimson jerseys and Sooner wears white jerseys that match the team that they are supporting.Two costumed mascots based on the ponies who pull the Schooner were introduced at the Big Red Rally on August 25, 2005.[3] The mascots are named Boomer and Sooner and are dressed in costumes of two identical crème white ponies with different eye colors. Non-animal mascots were needed to represent the University of Oklahoma at certain athletic contests, charity events and children's hospitals.[3] The mascots replaced the Top Daug mascot at Oklahoma Sooners basketball games. Boomer has competed in Universal Cheer Association National Competition for 4 years, placing 2nd in 2012.