BAT RULES

Please note that as the 2015-16 season is now over, the grace period on transition to the new bat rules is over. The Baseball Australia endorsed bat rules of Little League International now come into effect immediately. As follows:

Rule 1.10 - Baseball

The bat must be a baseball bat which meets Little League specifications and standards as noted in this rule. It shall be a smooth, rounded stick and made of wood or of material and color tested and proved acceptable to Little League standards.

Little League (Majors) and below:

It shall not be more than thirty-three (33) inches in length nor more than two and one-quarter (2¼) inches in diameter. Non-wood bats shall be labeled with a BPF (bat performance factor) of 1.15 or less;

EXCEPTION: For the Little League (Majors) and below, for regular season play and Tournament, composite bats are prohibited unless approved by Little League International. View the list of approved and licensed composite bats.

Intermediate (50-70) Division and Junior League

It shall not be more than 34 inches in length; nor more than 2 5/8 inches in diameter, and if wood, not less than fifteen-sixteenths (15/16) inches in diameter (7/8 inch for bats less than 30”) at its smallest part. All composite barrel bats shall meet the Batted Ball Coefficient of Restitution (BBCOR) performance standard, and such bats shall be 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.

Senior/Big League (aka Colts):

It shall not be more than 36 inches in length, nor more than 2 5/8 inches in diameter, and if wood, not less than fifteen-sixteenths (15/16) inches in diameter (7/8 inch for bats less than 30") at its smallest part. The bat shall not weigh, numerically, more than three ounces less than the length of the bat (e.g., a 33-inch-Iong bat cannot weigh less than 30 ounces). All bats not made of a single piece of wood shall meet the Batted Ball Coefficient of Restitution (BBCOR) performance standard, and such bats shall be 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 and composite bats shall be marked as to their material makeup being aluminum 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.

Importantly, the following must be observed:

For bats with 2 5/8-inch barrels, the following will apply for the Junior League Baseball Division and Intermediate (50/70) Baseball Division.

  1. Bats with composite materials in the barrel must be compliant with BBCOR standards, and must be labeled as such;
  2. Bats with barrels composed entirely of wood, metal, aluminum, or alloy (exclusive of the end cap) are NOT required to be BBCOR compliant. These bats may be 2 1/4" in diameter (non-composite barrel) and must be marked with BPF 1.15 notation.
  3. Bats must meet the standards noted in Rule 1.10 for length, diameter, etc.

For baseball bats, the following will apply for the Senior League and Big League Baseball Divisions (aka Colts):

  1. ALL bats with barrels that are not entirely composed of wood must be compliant with BBCOR standards, and must be labeled as such;
  2. Bats must meet the standards noted in Rule 1.10 for length, diameter, etc.

For a list of Frequently Asked Questions - refer here