Chief Illiniwek was the symbol/mascot of the University of Illinois Urbana–Champaign (UIUC), associated with the university's intercollegiate athletic programs, from October 30, 1926, to February 21, 2007. Chief Illiniwek was portrayed by a student to represent the Illiniwek, the state's namesake, although the regalia worn was from the Sioux. The student portraying Chief Illiniwek performed during halftime of Illinois football and basketball games, as well as during women's volleyball matches.