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USBC tested balls from multiple batches, and the non-conformance was not limited to a specific batch.īowlers who used the Spectre in competition before March 14, 2022, with no prior knowledge of their balls being out of specification would not be subject to forfeiture under USBC rules. The statistical analysis of the Storm Spectre indicated a defect rate of 98.6%, meaning that 98.6% of Spectre balls are projected to be outside USBC’s hardness specification limit. The Spectre had been approved for competition in December 2021.

The ball originally was approved based on samples submitted by Storm. USBC testing showed a significant percentage of the Storm Spectre do not meet the minimum 73D hardness specification during spot checks of bowling balls in the field. The revocation comes after USBC determined through its spot-checking procedures that a significant percentage of the balls produced do not comply with specifications and requirements outlined in the USBC Equipment Specifications and Certifications Manual. The United States Bowling Congress has revoked approval of the Storm Spectre bowling ball and removed it from the list of balls approved for USBC competition effective March 14, 2022.

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