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:Karma Urethane
Reviewed:September 2012
Coverstock Specs
Name:Urethane Solid
Box Finish:500 / 1500 SiaAir
Color:Navy Solid
Core Specs
Int. Diff:0.000

The Brunswick Karma Urethane is the newest release in the Karma line and it uses a solid urethane cover. The urethane cover comes at a rougher surface than we have seen previously from Brunswick. The combination of the 500/1500 Siaair finish is rough enough to create some traction on medium oily lanes, as long as there is friction to the right.

We had a decent look on our medium pattern playing straighter on the lane. The flare rings were large and noticeable, more so than some other urethane offerings we have tested. As the oil began to carry down the lane, the Karma Urethane started having trouble getting back to the pocket. We moved our target farther left and went with a more direct line

Brunswick Karma Urethane Comparisons

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To compare the Brunswick Karma Urethane to any other bowling ball(s), please use our Bowling Ball Comparison tool.

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.