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
Baseball in the United States others. An extensive minor league baseball system covers most mid-sized cities in the United States. Minor league baseball teams are organized in a six-tier hierarchy, in which the highest teams (AAA) are in major cities that do not have a major league team but often have a major team in another sport, and each level occupies progressively smaller cities. The lowest levels of professional baseball serve primarily as development systems for the sport's most inexperienced prospects, with the absolute bottom, the rookie leagues, occupying the major league squads' spring training complexes and making no effort to earn money on their