The National Association of Intercollegiate Athletics men's basketball national championship has been held annually since 1937 (with the exception of 1944 and 2020). The tournament was established by James Naismith to crown a national champion for smaller colleges and universities. Through the 2019–20 season, the NAIA Tournament featured 32 teams, and the entire tournament was contested at one location in one week, rather than multiple locations over a series of weekends. Beginning with the 2021 edition, the tournament expanded to 48 teams, starting with play at 16 regional sites, with only the winners at these sites playing at the final venue. The 2022 tournament expanded again to 64 teams. From 1992 to 2020, the NAIA sponsored a Division II championship. The Division I tournament is play