The following 43 teams were automatic qualifiers for the 2019 NCAA field by virtue of winning their conference's automatic bid (except for the UAA, whose regular-season champion received the automatic bid).[1]
The following 21 teams were awarded qualification for the 2018 NCAA field by the NCAA Division III Men's Basketball Committee.[1] The committee evaluated teams on the basis of their win–loss percentage, strength of schedule, head-to-head results, results against common opponents, and results against teams included in the NCAA's final regional rankings.[2] By rule, one bid is reserved for teams in Pool B if there are enough teams that qualify for it. Pool B is for teams that are either independents or whose conference does not yet qualify for an automatic bid.