Bowler Ratings


Bowler ratings are from 1 to 10 in order of Stroker (ST), Tweener (TW), Cranker (CR)

Note: Ratings are only available to our premium members.

General Info

Name:Tenacity Grit
Reviewed:November 2018
Coverstock Specs
Name:URG (Ultra Responsive Grit)
Type:Reactive Pearl
Box Finish:500 / 1000 / 3000 SiaAir
Color:Blue / Purple / Silver
Core Specs
Name:Tenacity Low RG
Int. Diff:0.018

For details on our standard test layouts, please click here.

The Tenacity Grit joins Brunswick’s Pro Performance line as the follow-up to the original Tenacity. The Grit uses the new pearlized URG coverstock in conjunction with the same asymmetrical Tenacity Low RG core as the original. The box finish is also different on the Tenacity Grit, as it uses a 3000 SiaAir finish, which gets it started earlier on the lane than the original’s Crown Factory Compound finish. The Tenacity Grit provided more overall hook, less length, and a smoother reaction off the breakpoint than the original.

This ball’s earlier breakpoint and increased traction through the oil helped it match up best to our heavy oil test pattern. Stroker and Tweener liked the extra motion created by the Tenacity Grit’s duller box finish. It gave them plenty of hook through the pattern to get them high flush into the pocket. Stroker was starting his ball on 15, crossing the second arrow, and using the eight board as his breakpoint. Tweener’s ball was landing on 19, swinging across 13 at the arrows, and also getting out to eight downlane. Cranker couldn’t get his ball path to match up to the fresh as effectively as the other two testers. His ball was starting on 27, with a target on 16 and a breakpoint also on eight. He needed

Additional Brunswick Tenacity Grit Resources

Click here to visit Brunswick's website to read the manufacturer-supplied information on this ball. Also, see below for the manufacturer-produced promotional video for this ball.

Please remember that our reviews are solely based on our own testing and that you may sometimes find differences between our comments and ratings and the manufacturer's claims. Links to these manufacturer resources are provided here strictly for convenience purposes.

The BTM Ball Testing Team

About The BTM Ball Testing Team

The BTM Ball Testing Team is led by Eric Martinez. Our team of three testers has thrown and reviewed hundreds of bowling balls for Bowling This Month. When not testing balls for BTM, Eric owns and operates University Pro Shop in San Antonio, TX and he is an avid competitive bowler. Click here to learn more about how we test and review bowling balls.