Staff Answer
Oct 08, 2026 - 05:22 PM
Yes. The Hammer Black Widow 2.0 is on USBC's approved ball list, approved on October 20, 2020, so it is legal for USBC certified league and tournament play. USBC updates the list weekly at https://bowl.com/approved-ball-list. If you bowl a specific event, check that event's equipment rules before you drill.
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