Rule 1.10
What is changed: Reduces the maximum diameter for a bat in the Junior League Baseball division from 2 3/4 inches to 2 5/8 inches. (Maximum diameter for bats in Senior League and Big League remains at 2 5/8 inches.)
1.10 - 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 printed with a BPF (bat performance factor) of 1.15 or less;
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.
Senior/Big League: 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 non-wood bats shall meet the BESR (Bat Exit Speed Ratio) performance standard, and such bats shall be labeled with a permanent certification mark.
In all divisions, wood bats may be taped or fitted with a sleeve for a distance not exceeding sixteen (16) inches (18 inches for Junior/Senior/Big League baseball) from the small end. A non-wood bat must have a grip of cork, tape or composition material, and must extend a minimum of 10 inches from the small end. Slippery tape or similar material is prohibited. An illegal bat must be removed.
NOTE 1: Junior/Senior/Big League: The 2¾ inch in diameter bat is not allowed in any division.
NOTE 2: The traditional batting donut is not permissible
NOTE 3: The bat may carry the mark “Little League Tee Ball.”
NOTE 4: Non-wood bats may develop dents from time to time. Bats that cannot pass through the approved Little League bat ring for the appropriate division must be removed from play. The 2¼ inch bat ring must be used for bats in the Tee Ball, Minor League and Little League Baseball divisions. The 2 5/8 inch bat ring must be used for bats in the Junior, Senior and Big League divisions of baseball.