$300K+
Donated since 1998
Because somewhere between the last high-school game and now, you never actually stopped being a ballplayer. MSBL is where you prove it — don't go soft, play hardball.
The Men's Senior Baseball League and Men's Adult Baseball League (MSBL/MABL) is the premier amateur baseball league for adults 18 and older, with divisions for 25+, 35+, 45+, 55+, 65+ and 70+. Founded in 1988, it's the fastest-growing adult baseball organization in the country.
Nationally, MSBL has 325 local affiliates, 3,500 teams, and over 75,000 members playing organized baseball in their local areas — plus 8 national tournaments and 10 regional tournaments every year. When discerning ballplayers of every skill level want to keep playing real baseball, they find their way to MSBL.
Organized seasons with schedules, standings, stats, and playoffs — run by a professional national office and dedicated local leadership. You're chasing a championship, not just playing catch.
The true beauty of the league is friendship. Teammates become a rare group of friends who support each other and gather with their families season after season.
It's the best workout you'll never dread. Members credit MSBL with keeping them stretching, conditioning, and sharp — titanium hips and all.
Marucci Sports runs dedicated MSBL/MABL specials several times a year — often 20–25% off their entire catalog. Most players recoup their $26 national fee on gear alone.
Participant legal-liability insurance is included, and leagues can add accident/medical coverage that supplements your own insurance — up to $25,000 for deductibles and co-pays.
Membership makes you eligible for regional and national tournaments — including the World Series and Fall Classic, played on MLB Spring Training fields. Yes, there are rings.
Search 325 affiliates nationwide and pick the league and division that fits you.
Sign up as a free agent or bring a full team. The national fee is just $26 per player.
Show up, suit up, and compete on a real schedule with stats and standings.
Take your team to the World Series, Fall Classic, or a regional tournament.
MSBL/MABL National continues a long tradition of giving back. Since beginning the effort in 1998, our leagues have donated over $300,000 to charity. In 2026, MSBL is rallying behind the Tunnel to Towers Foundation with a national goal of $40,000 — every league chipping in to support a cause that honors our first responders and military families.
Find a league near you and get back to playing the game the right way.
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