Compare the specs of the Brunswick Nirvana and Brunswick Mastermind Strategy side by side in the ball comparison table below. To view the full bowling ball review for one of these balls, click the ball name link in the table below.
Click here to add or remove balls from this comparison.
 |  | |
| Brand | Brunswick | Brunswick |
| Ball Name | Nirvana | Mastermind Strategy |
| Cover Name | ECS (Enhanced Composite Segmentation) | Relativity Solid |
| Cover Type | Reactive Solid | Reactive Solid |
| Box Finish | 500 / 1500 SiaAir | 500 / 2000 SiaAir |
| Color | Red / Blue / Violet Solid | Blue / Violet / Orange |
| Core Name | Nirvana Ultra Low RG Asymmetrical | Modified Mastermind Asymmetric |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.477 | 2.504 |
| Total Diff. | 0.054 | 0.048 |
| Int. Diff. | 0.013 | 0.013 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |