The Tenacity brings both a new coverstock and a new weight block to Brunswick’s Pro Performance line. The UR (Ultra Responsive) coverstock retains tons of energy for the breakpoint and back end. The new Tenacity Low RG asymmetrical core gives this ball an RG of 2.503″ with lots of flare potential. The new coverstock is finished at 500 SiaAir with Crown Factory Compound, allowing it to glide through the front of the lane and bang off the breakpoint as hard as any previous Brunswick ball we’ve thrown.

The Tenacity’s strong move off the dry was best for opening up our angles through the front of the lane on our medium oil test pattern. Tweener liked his reaction the best on the fresh, seeing plenty of hook through the middle of the lane with a strong change of direction at the breakpoint. Stroker and Cranker also had good reactions on the fresh. Cranker compared this ball directly to his Quantum Fire Pearl. The Tenacity was more angular off the breakpoint and offered more recovery at the back end, while also providing more total hook. Stroker liked being able to throw ...