The Mundelein Baseball and Softball Association (MBSA) is a community based program in Mundelein, Illinois whose mission is to provide boys and girls, ages 5-15, the opportunity to learn the value of competition, sportsmanship, teamwork and self worth through the playing of baseball or softball.

MBSA Updated Baseball Bat Specifications

8U Travel and House AA, A,T6 and T5 and down will still be:

Max barrel of 2 1⁄4 ” diameter, a maximum length of 33 inches, a maximum differential of -13 and a Stamped BPF of 1.15 will be allowed.

USSSA and USA Baseball stamped bats meeting these size and weight standards are allowed.

9U - 12U Travel and up, and House AAA, Minors and Majors:

9U to 12U is -12, 13U is -8, and 14U is -5).

The max bat diameter will be 2 ¾ inch. All bats must have a USA Baseball stamp, a USSSA stamp, or have a BPF of 1.15.

USSSA and USA Baseball stamped bats meeting these size and weight standards are allowed.

2019 Travel Baseball & Softball Tournaments

To help you along, we've created a page with some of the frequently asked questions along with a link to our new platforms (Sports Engine) extremely helpful "Help Center".

Find out more here.

Ongoing Registrations

2019 MBSA House League Baseball and Softball Registration   

MBSA Complex Location

Keith Mione Community Park
1461 N. Midlothian Road
Mundelein, IL 60060

MBSA Mailing Address

PO Box 606
Mundelein,IL 60060

Email Us