For the 2025 MBL Fall League and 2025 MBL/MBT seasons, MBL/MBT will allow the use of both USA and USSSA approved stamped bats in our leagues as well as in tournament play. The decision is in part to simplify the rules and regulations in both league and tournament play in Minnesota and western Wisconsin.  The following bat regulations will be in place:

The following pertains to the legality of bats in the MBL/MBT for the 2025 season.

 

9-11 year olds: Maximum diameter at the thickest part: 2 1/4", 2 1/2”, 2 5/8” or 2 3/4”   with UNLIMITED weight differential and a USSSA or USA mark and meet Bat Performance Standards.

12-13 year olds: Maximum diameter at the thickest part: 2 1/2", 2 5/8”, or 2 3/4” barrel with minus 10 weight differential (or less) and a USSSA or USA mark and meet Bat Performance Standards.

OR

Maximum diameter at the thickest part: 2 1/4" or less with UNLIMITED weight differential and a USSSA or USA mark and meet Bat Performance Standards.

14 year olds: Maximum diameter at the thickest part: 2 3/4" or less barrel with maximum minus 5 weight differential with USSSA or USA mark and   meet  Bat Performance Standards. (This includes 14/15A Division)

14 and 15 year olds: Maximum diameter at the thickest part: 2 5/8" or less with a minus 3 weight differential and be BBCOR approved.

In length: 36" or less

WOOD BATS and BBCOR ALLOWED AT ALL AGES