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:

  • For any type of bat, the maximum diameter is two and three quarters inches (2 3/4") or two and five eighths (2 5/8")  and the maximum length is 36". 
  • Aluminum and composite wood bats must be marked by the manufacturer as "BBCOR" or "BPF 1.15" or "USA"
  • Be a solid core wood bat (with or without markings).

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.