Home / Leagues / Little League bat rules

Little League bat rules

Summary of Little League Baseball Rule 1.10 (baseball divisions). Always check your local league’s posted rules.

Majors & belowUSABat required

BPF 1.15 / USSSANot allowed

Intermediate / JuniorUSA or BBCOR

SeniorBBCOR required

What parents need to know

Tee Ball, Minor, Major: non-wood bats must bear the USA Baseball logo. Max length 33″; max diameter 2⅝″. All BPF 1.15 bats are prohibited.
Tee Ball bats (26″ and shorter) also need text: “ONLY FOR USE WITH APPROVED TEE BALLS.”
Intermediate (50/70) & Junior: USABat or BBCOR allowed; max length 34″.
Senior: non-wood bats must meet BBCOR; max length 36″; −3 drop weight rule applies.
Solid one-piece wood bats do not require the USA Baseball logo.

Little League announced (July 7, 2026) that USA Baseball will oversee a new USA BBCOR standard. Little League states this does not change 2026 Intermediate/Junior/Senior tournament bat rules and will not impact 2027 seasons. Watch for updates beyond that.

Official sources: Little League Bat Rules · USABat FAQs · usabat.com

Browse USA-stamp bats we track →

Barrel size by age Published limits

Maximum barrel diameter (inches) commonly published for this program. Length and drop limits are separate — check the notes.

Age / division	Max barrel	Notes
Tee Ball	2⅝″ max	USABat tee-ball mark; 26″ and shorter; approved tee balls
Coach / Machine Pitch (Minors)	2⅝″ max	USABat; approved tee-ball bats OK only with approved tee balls
Minors & Majors	2⅝″ max	USABat required; length ≤ 33″; BPF 1.15 banned
Intermediate (50/70) & Junior	2⅝″ max	USABat or BBCOR; length ≤ 34″
Senior	2⅝″ max	BBCOR required for non-wood; length ≤ 36″; −3 drop

Little League Rule 1.10: diameter shall not exceed 2⅝″ in these divisions. USABat models also ship in 2¼″ and 2½″ sizes — all legal if stamped and within the max.

Reference: Little League Bat Rules / USABat FAQs

Rules change. Always confirm with your league or event director before game day.

Page reviewed: October 22, 2026