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Thornydale Little League

Baseball Bat Standards

Rule 1.10 – Baseball

The bat must be a baseball bat which meets the USA Baseball Bat standard (USABat) as adopted by Little League. It shall be a smooth, rounded stick, and made of wood or of material and color tested and proved acceptable to the USA Baseball Bat standard (USABat).

Beginning with the 2018 season, non-wood and laminated bats used in the Little League (Majors) and below, Intermediate (50-70) Division, Junior League divisions, and Challenger division shall bear the USA Baseball logo signifying that the bat meets the USABat – USA Baseball’s Youth Bat Performance Standard. All BPF – 1.15 bats will be prohibited beginning with the 2018 season. Additionally, starting in 2018, the bat diameter shall not exceed 2⅝ inches for these divisions of play. Bats meeting the Batted Ball Coefficient of Restitution (BBCOR) standard may also be used in the Intermediate (50-70) Division and Junior League divisions.

Baseball Bat Chart

Tee Ball Division
Under the USABat standard, certified Tee Ball bats (26" and shorter) will feature the USA Baseball mark and text which reads ONLY FOR USE WITH APPROVED TEEBALLS.

Minors & Majors Division
USA Baseball markings
2 5/8” barrel diameter maximum 
33" length maximum
No weight limits
Solid one-piece wood barrel bats do not require a USA Baseball logo.

Intermediate (50/70) & Junior Divisions
USA Baseball marking or BBCOR marking
2 5/8” barrel diameter maximum 
34" length maximum
No weight limits
Solid one-piece wood barrel bats do not require a USA Baseball logo.

Also, permitted for the Intermediate (50-70) Division and Junior League Division are bats meeting the BBCOR performance standard, and so labeled with a silkscreen or other permanent certification mark. The certification mark shall be rectangular, a minimum of a half-inch on each side and located on the barrel of the bat in any contrasting color. Aluminum/alloy and composite bats shall be marked as to their material makeup being aluminum/alloy or composite. This marking shall be silkscreen or other permanent certification mark, a minimum of one-half-inch on each side, and located on the barrel of the bat in any contrasting color.

Senior Division
ALL bats must be BBCOR
2 5/8 barrel diameter maximum
36" length maximum
The bat shall not weigh, numerically, more than three ounces less than the length of the bat (e.g., a 33-inch-long bat cannot weigh less than 30 ounces)

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