Age Divisions 18+, 25+, 35+, 45+, 55+, 62+, 70+

Our RLB (Rock League Baseball) adult product is one of the largest adult baseball leagues in the United States, representing over 60 teams and over 900 players in the greater Milwaukee area. RLB was formed in 2013 through a merger of Milwaukee MSBL and the Milwaukee Baseball League. We are a proud member of national MSBL, which represents a brotherhood of over 45,000 adult hardball players across the United States, playing in tournaments all over the US, including the largest baseball tournament in the world – the MSBL World Series. Our age divisions are 18+, 25+. 35+, 45, 55+, 62+ and our newly formed 70+. League play starts  Mid-April and goes through September.

RLB Adult League is brought to you by Miller Lite…the original light beer.

RLB Adult Game Times:
Monday - Friday: 1pm (62+, 70+), 7:15pm, 7:30pm, 7:45pm
Saturday & Sunday: 9:00am, 12:15pm, 3:30pm, & 7:00pm


 2024 RLB Player Waiver   *All players must submit a waiver


Interested in playing?  Fill out the online form found below.

18+ League

Our 18+ league strictly abides by MLB rules fostering top-level competition at the adult level. Join a group of some of the most talented players & teams in the greater Milwaukee area for a one-of-a-kind experience!

The 18+ division plays mainly on Sunday nights.

25+ League

The 25+ league is competitive & challenging at the post-collegiate level. Blend sharp skills, mental toughness, & game knowledge that only comes with experience to give you a feel for our 25+ league.  Candidate teams & players are always welcome to apply.

The 25+ division plays mainly on Wednesday and/or Thursday nights.

35+ League

Still want to be challenged, but want a little more freedom & flexibility in game management? The 35+ league blends excellent competition with the freedom to substitute players in & out of the game.  Join up today if you still have the skills to compete!

The 35+ division plays mainly on Monday nights.

45+ League

If you make it to our 45+ league, you are doing something right.  This league is full of outstanding players still making their mark on amateur baseball. With all teams being competitive, teams are always looking for that player that will help give them the edge over the competition. Sign up today to help find your future team.

The 45+ division plays mainly on Tuesday nights.

55+ League

Don’t let that large number fool you; these guys can still play. In addition, these are some of the classiest & funniest guys around. Looking for a fun, competitive way to play ball with the guys? Join up with the 55+ league to keep the dream going!

The 55+ Division plays mainly on Saturday mornings & afternoons.

62+ & 70+ League

Now these leagues are enough to impress anyone. 62 & 70 year olds still playing competitive baseball? Its true and its at The Rock Sports Complex. Still have what it takes? Get involved & keep those competitive juices flowing!

 The 62+ Division plays mainly on Tuesday afternoons at 1pm. The 70+ Division plays mainly on Thursday afternoons at 1pm.