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The 11th Frame: A deep dive into the urethane ball hardness tests with former USBC, World Bowling technical executive Neil Stremmel

JEFF RICHGELS | Posted: Tuesday, March 3, 2020 8:00 am

A hand-held durometer use to check bowling balls in the field for years. A reader sent it to me after reading my recent series of stories on urethane ball hardness. Photo by Jeff Richgels.
Judging by my inbox and comments on social media, I am not the only one who still has questions about the issues surrounding the urethane ball hardness tests USBC did at last month’s 2020 U.S. Open. If you were living under a rock, I wrote three lengthy stories on the topic with these headlines: It's a 'baseless claim' to say illegal PURPLE HAMMERs are being used on the PBA Tour, PBA Commissioner Tom Clark says Video of a 7 series PURPLE HAMMER testing illegally soft illustrates why...

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