* All bats must have the USA or USSSA stamp (unless using a -3 BBCOR stamped bat or wood bat).
* 15AA and 15AAA must use a BBCOR stamped bat or a wood bat.
* All levels besides 15AA/15AAA may use a BBCOR -3 bat.
* Any bat with a USA or USSSA stamp that has been deemed illegal via publication by the manufacturer based on subsequent testing is also illegal in MBL league play.
9-11U | Barrell: 2 ¾” or less / Weight differential: Unlimited |
12U & 13U | Barrell: 2 1/4" or less with UNLIMITED weight differential or Barrell: 2 ¾” or less / Weight differential: -10 |
14U & 14/15A | Barrell: 2 ¾” or less / Weight differential: -5 |
15AA and 15AAA | BBCOR stamp with -3 differential. |
Brian Monahan
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