USA Softball (fastpitch) bat rules (2027)
USA Softball fastpitch bat rules for youth and adult play.
| Division | Season | Stamp | Barrel | Max length | Drop limit |
|---|---|---|---|---|---|
| Girls (JO) & women's fastpitch Ages 6+ | Current | USA Softball | 2 1/4" | 34" | — |
| Boys (JO) & men's fastpitch Ages 10+ | Current | USA Softball | 2 1/4" | 34" | — |
Notes by division
- Girls (JO) & women's fastpitch: The bat must be on USA Softball's approved list and off the non-approved list. The ASA 2013 mark isn't legal for girls' or women's fastpitch. At National Championships, bats must pass a barrel compression test.
- Boys (JO) & men's fastpitch: ASA 2013 marks are also allowed here. USSSA and WBSC marks are allowed only at Men's Major and Open Championships.
Stamps used in USA Softball (fastpitch)
- USA Softball mark (ASA 2000, ASA 2004 or USA Softball "All Games"): The most widely required fastpitch stamp. USA Softball events also require the bat to be on the approved list and off the non-approved list. The ASA 2013 mark isn't legal for girls' or women's fastpitch. Official list.
Sources
- https://www.usasoftball.com/wp-content/uploads/sites/120/2026/01/1-12-2026-Rule-Book.pdf (checked Oct 23, 2026)
This page summarizes published rules. 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. Questions about a specific model? Check the official list linked above. More bat questions.
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