Little League Softball Junior & Senior League bat rules (2027)
The rule for 2027
Bats must carry the BPF 1.20 stamp, or be wood. Barrel 2 1/4" max. Length 34" max.
Source: littleleague.org · checked Oct 23, 2026
| Stamp | BPF 1.20 or Wood |
|---|---|
| Max barrel | 2 1/4" |
| Max length | 34" |
| Drop limit | — |
| Ages | 12–16 |
What the stamps mean
- "BPF 1.20" printed on the bat: Little League Softball requires non-wood bats to be printed "BPF 1.20". Most current fastpitch bats carry it, but check before you buy. Official list.
- one-piece solid wood: One-piece solid wood is legal almost everywhere without a stamp. Multi-piece, laminated, bamboo and composite-wood bats usually do need a certification mark.
What size bat for Junior & Senior League?
Height and weight matter more than age. These are typical sizes for an average-size player, from the Rawlings/Easton sizing chart and CDC growth charts. For your player's exact size, use the Bat Finder for Junior & Senior League.
| Age | Typical length | BPF 1.20 drop |
|---|---|---|
| 12 | 30"–31" | -11 or -10 |
| 13 | 30"–31" | -11 or -10 |
| 14 | 31"–33" | -10 or -9 |
| 15 | 31"–33" | -10 or -9 |
| 16 | 31"–33" | -10 or -9 or -8 |
Shop bats for Junior & Senior League
These links open bats with the right stamp. Check the exact model against the official list before you buy. We earn a commission if you buy, at no cost to you.
BPF 1.20 bats
Other Little League & Babe Ruth Softball divisions
- Tee Ball, Minors & Majors (Ages 4–12)
- Babe Ruth Softball All divisions (6U–18U) (Ages 5–18)
This page summarizes the published rule. Your league or tournament can add its own, and its ruling is final. Confirm your bat isn't on a decertified or non-approved list before you buy. More bat questions.
Not sure what to buy?
The free Bat Finder gives you the length, the drop and the stamp your league requires in about 20 seconds.
Open the Bat Finder