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30 mar 2022 · Purple Hammer bowling balls manufactured in 2016 and 2017 were banned from USBC certified competition, and are not allowed in any level of PBA competition. Previously, for PBA National Tour competition only, the PBA placed a 2-year shelf-life rule on all “traditional urethane” bowling balls.
ARLINGTON, Texas - The United States Bowling Congress has revoked approval of Purple Hammer bowling balls manufactured in 2016 and 2017. These model years are removed from the list of...
21 mar 2022 · A Purple Hammer nicknamed “Old Faithful” has been reliable for Jakob Butturff over the years. But after the PBA instituted a new rule earlier this month that banned all urethane made prior to 2020, that ball has been removed from the lefty’s arsenal for all national tour events.
7 mar 2022 · ARLINGTON, Texas - The United States Bowling Congress is aware of a claim that a portion of the Purple Hammer bowling balls manufactured at the Ebonite International plant in 2016 and...
9 mar 2022 · Purple Hammer bowling balls manufactured during 2016 or 2017 (identified by serial numbers that start with either a “6” or “7”) are prohibited for use. USBC has shared this national tournament rule with Hammer’s current owner, Brunswick, and has Brunswick’s support.
7 mar 2022 · Purple Hammer bowling balls manufactured during 2016 or 2017 (identified by serial numbers that start with either a “6” or “7”) are prohibited for use.
3 mar 2022 · Only 2016 and 2017 manufactured Purple Hammers are illegal for use in USBC-sanctioned events. Per USBC, "Purple Hammer bowling balls manufactured during 2016 or 2017 are identified by serial numbers that start with either a "6" or "7."
