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
Timeline of Negro league baseball teams and leagues. The two thick black lines represent the formation of organized league play in 1920 and the integration of Major League Baseball in 1946. After integration, the level of play deteriorated rapidly and dramatically. By 1950 all teams were considered to be of minor league status. Timeline of Negro league baseball teams The following is a timeline of the evolution of major-league-caliber franchises in Negro league baseball. The franchises included are those of high-caliber independent teams prior to the organization of formal league play in 1920 and concludes with the dissolution of the remnant of the last major Negro