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    RLB Field Status Report

    Adult League

    Our RLB (Rock League Baseball) adult product is one of the largest adult baseball leagues in the United States, representing over 55 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+, 28+. 35+, 45, 55+ and 60+. League play starts late April and goes through August/September.

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

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      The Rock Ball Park

      The Rock Sports Complex is uniquely defined by its major league specification baseball fields. Our fields are designed by the very best experts and built using the very best product, used by the vast majority of the 30 Major League Stadiums – from the drainage and irrigation to the sod, root zone mix, and infield dirt. No detail was overlooked. We hold ourselves accountable to keeping these fields looking and playing at the highest level, including grounds crew efforts between games. Whether you are playing in a tournament or a Rock League Baseball game, you will immediately know that you’re playing on the real deal, just like the pros. We model each of our fields after a major league diamond, from Fenway’s green monster to AT&T’s short left porch. Explore our replica fields above.

      Our Sponsors

      These fine organizations make what we do possible. Please show your support to these amazing sponsors and thank them for their commitment to our organization. Interested in becoming a sponsor? Click here to learn more about our sponsorship opportunities

      Sponsored by MillerCoors


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      Sponsored by Potowatami Hotel & Casino

      Potowatami Hotel & Casino

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      Sponsored by Chick-fil-a


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      Sponsored by Wisco Hotels Group

      Wisco Hotels Group

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      Sponsored by Tru Green

      Tru Green

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      Contact Us For More Info

      Contact Us For More Info

      Rock Adult League Baseball

      Phone: 414-529-7676