USSSA vs ASA Rating
Also known as: 1.21 BPF, 1.20 BPF, USA Softball standard
USSSA and ASA (now USA Softball) are the two major bat-certification standards in softball. USSSA allows a higher BPF (up to 1.21) than ASA/USA Softball (1.20), so the same bat may be legal in one but not the other.
The gap between USSSA 1.21 and ASA 1.20 BPF sounds small but translates to measurably more trampoline effect and distance — which is why competitive recreational leagues often specify one standard over the other. ASA/USA Softball is generally the more restrictive standard and is used in national championship and sanctioned amateur play. USSSA runs its own championship circuit with its higher limit. Players competing in multiple leagues may need multiple bats; using a USSSA bat in an ASA-only league is an equipment violation.
Example
A hitter uses his USSSA 1.21 BPF bat in an ASA league tournament; an opponent protests and the bat is measured — it is ruled illegal and the team forfeits.
Related terms
- Bat CertificationBat certification is official approval from a sanctioning body (ASA/USA Softball, USSSA, NSA, ISA, etc.) confirming a bat meets performance and safety standards for league play.
- BPF (Bat Performance Factor)BPF measures how much energy a bat returns to the ball compared with a completely rigid wall. A higher BPF means more "trampoline" pop off the barrel.
- Double-Wall BatA double-wall bat has two layers of barrel material that flex together at contact, adding "trampoline" effect for more exit velocity than a single-wall bat.
Related guides & benchmarks
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