National Amateur Athletic Union Basketball Champions
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.