League Information

Ballwin Athletic Association offers a variety of baseball and softball programs from training leagues for 4 year olds through Men's 30U leagues. Please click one of the links at the left to find out more information about each of our programs.

Bat Rule

To be considered legal for use in the STLWAA, bats must comply with the following:

  • no bigger than 2-3/4" diameter
    • constructed of wood, aluminum or any other combination of materials
    • There are NO drop/weight restrictions for any age except 15u and above (MSHSAA rules apply for these age groups)
    • NEW for 2018!!! - If the bat has a "USA Baseball" stamp on the bat, it will be allowed but the diameter can be no larger than 2-5/8" diameter (I believe that is the standard for these bats anyway - they come as 2 1/4" or 2-5/8")

In addition all bats for ages 15U and above must conform to the Missouri State High School Activities Association (MSHSAA) bat limitations. The MSHSAA regulations are the sole discretion of that body and are subject to change at anytime without notice.

It will be each individual manager’s responsibility to check the bats of the opposing team.