DU's athletic teams are known as the Denver Pioneers since 1925. The school has been fielding athletic teams since 1867, winning 33 NCAA Division One titles since 1949—among the top 15 of all schools. Denver is best known as a major power in winter sports, in particular, skiing and ice hockey. DU has won 24 NCAA national team skiing championships (more than any other school). Ice hockey is DU's flagship spectator sport, with eight NCAA titles (tied for second among all schools), most recently in 2017 and including back-to-back crowns in 2004 and 2005. The program has produced 75 NHL players and regularly sells out the 6,000 seat Magness Arena on campus, the showpiece of the Ritchie Center for Sports and Wellness.