The AAU, which held its first basketball championship in 1897, did not hold a championship game from 1902 to 1909; the AAU Championship resumed in Chicago in 1910, was suspended for two more years, then was permanently reestablished in 1913. YMCA teams dominated the early tournaments but were supplanted by college teams in the early 1920s. The first open-bottom nets, made as early as 1906, were approved for championship play in the 1912—1913 season.

1910 — Company F, Portage National Guard (Wisconsin).

1911— No competition

1912 — No competition

1913 — Cornell (Armour Playground), Chicago

1914 — Cornell (Armour Playground), Chicago

1915 — Olympic Club, San Francisco

1916 — University, of Utah, Salt Lake City

1917 — Illinois Athletic Club, Chicago

1918 — No competition

1919 — Los Angeles Athletic Club

Source:

Modern Encyclopedia of Basketball, edited by Zander Hollander (New York: Four Winds, 1969).