4-12 year-olds
Maximum diameter at the thickest part:
2 1/4” or less: With unlimited weight differential with USA baseball stamp on the taper.
2 1/2” or less, 2 5/8” or less, 2 3/4” or less: With the Maximum of minus 11 weight differential stamped approved by USA stamp Bat OR with the Maximum of minus 3 weight differential on a BBCOR Certified bat.
Please note that "big barrel" bats are allowed, but not required.
13-14 year-olds – Maximum diameter at the thickest part:
2 3/4” or less:
With the Maximum of minus 5 weight differential with the USA Stamp on the taper or stamped approved by Babe Ruth with the 1.15 BPF rating
OR with the Maximum of minus 3 weight differential on a BBCOR Certified bat.
15-18 year-olds - Maximum diameter at the thickest part:
2 5/8” or less:
With a Maximum of minus 3 weight differential and be BBCOR certified.
