Men's Senior Baseball League Men's Senior Baseball League The Men’s Senior Baseball League (MSBL)/Men’s Adult Baseball League (MABL) is a national organization in the United States, with 325 local affiliates, 3,200 teams, and 45,000 members who play organized amateur baseball in local leagues, 30 regional tournaments and six national tournaments. The Men’s Senior Baseball League (MSBL)/Men’s Adult Baseball League (MABL) is an amateur baseball league for adults 18 years of age and older was founded by Steve Sigler in 1988. Soon after, Steve established the MSBL/MABL World Series and Fall Classic which take place every October/November in Arizona and Florida, respectively, playing on almost
Negro league baseball black baseball, there were only seven leagues that are considered to be of the top quality of play at the time of their existence. None materialized prior to 1920 and by 1950, due to integration, they were in decline. Even though teams were league members, most still continued to barnstorm and play non-league games against local or semi-pro teams. Those games, sometimes approaching 100 per season, did not count in the official standings or statistics. However, some teams were considered "associate" teams and games played against them did count, but an associate team held no place in the league standings.