American Amateur Baseball Congress (AABC), which is based in Farmington, New Mexico, has been organizing amateur baseball since it was founded in Chicago in March 1935.  Its first national tournament was held in Dayton, Ohio in September that year, when only 10 states were a part of the organization.  Today, some 240,000-plus players from 42 states, Puerto Rico, and Canada play in the AABC.  Approximately 112,000 of them are in their teens, making it one of the largest amateur baseball organizations in the United States for players in that age range.

AABC conducts state, regional and national competition in seven age divisions:  Roberto Clemente (8 and under); Willie Mays (10 and under); Pee Wee Reese (12 and under); Sandy Koufax (14 and under); Mickey Mantle (16 and under); Connie Mack (18 and under); and Stan Musial (unlimited age).  Additionally, five national competitions are held in single age divisions.

AABC believes in local autonomy, by allowing organizations to have their own local rules through the state levels.  They can bat as many players as they want, have time limits, re-entry, and inning limits to meet local conditions.  When post-season arrives, all teams and tournaments must then conform to national rules.

AABC has one of the largest contingents of Major League players, currently approaching 1000. Click for our alumni list.