Bowler Ratings

PatternStTwCr
Oily:X.XX.XX.X
Medium:X.XX.XX.X
Dry:X.XX.XX.X
Sport:X.XX.XX.X

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

Note: Ratings are only available to our subscribers.

General Info

Coverstock Specs
Name:Relativity Solid
Type:Reactive Solid
Box Finish:500 / 2000 SiaAir
Color:Blue / Violet / Orange
Empty
Core Specs
Name:Modified Mastermind Asymmetric
Type:Asymmetrical
RG:2.504
Diff:0.048
Int. Diff:0.013

The Mastermind Strategy falls into the upper-mid performance price point in Brunswick’s line, just below the Nirvanas. It combines the Modified Mastermind Asymmetric core design with the Relativity Solid coverstock. This core has a higher RG of 2.504″ and lower differential of 0.048″ than the Mastermind Ultra Low RG core design from the early Mastermind releases, but it is the same as the core used in the more recent Mastermind Einstein. The coverstock is the first reactive solid used in this line since the Mastermind Intellect from 2014. The Strategy comes out of the box at a sanded 500/2000 SiaAir finish, allowing for a large amount of traction on heavier volumes of oil. We liked this ball equally well on our heavy and medium patterns, with our sport pattern not far behind.

We were able to easily get to the pocket on our heavy oil test pattern. The rough surface of this ball helped it pick up strong in the midlane and give us a smooth arc to the pocket. We were about five ...

Brunswick Mastermind Strategy Comparisons

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Additional Brunswick Mastermind Strategy 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 test results and that you may sometimes find discrepancies between our comments / 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.