These tables show changes made since the 2018 Spring season for the Atlanta Caribbean Division, Midwest Conference, Northeast Conference, and Southwest Conference which did not participate in the 2018 Fall season.
Teams are divided into conferences, some of which are further subdivided into divisions.
Following the regular season, teams compete in a playoff tournament to determine a single national champion.
Unless specified otherwise, all playoff matches are contested over a single leg, hosted by the team with the best points-per-game ratio.
Extra time is not used in any round; matches drawn after 90 minutes advance directly to a penalty shootout.