The Men's Senior Baseball League and Men's Adult Baseball League (MSBL/MABL) is a national organization founded in 1988 that has grown to more than 325 local leagues, 3,200 teams, and over 45,000 members. It is real baseball at a competitive level on a regular basis in a professionally run environment.
The MABL of Southern Wisconsin teams play in full uniforms on groomed fields in the Madison area with experienced and qualified umpires.