USBC REVOKES APPROVAL OF 2016 AND 2017 PURPLE HAMMER BALLS

ARLINGTON, Texas – The United States Bowling Congress has revoked approval ofPurple Hammer bowling balls manufactured in 2016 and 2017. These model years areremoved from the list of balls approved for USBC competition effective March 21, 2022.These model years of the Purple Hammer may no longer be used in any USBC certifiedcompetition including all USBC […]