Compare the specs of the Brunswick Nirvana and Brunswick Mastermind 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.
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| Brand | Brunswick | Brunswick |
| Ball Name | Nirvana | Mastermind |
| Cover Name | ECS (Enhanced Composite Segmentation) | Honor Roll Solid |
| Cover Type | Reactive Solid | Reactive Solid |
| Box Finish | 500 / 1500 SiaAir | 500 / 1500 SiaAir |
| Color | Red / Blue / Violet Solid | Black / Blue / Orange |
| Core Name | Nirvana Ultra Low RG Asymmetrical | Mastermind Ultra Low RG |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.477 | 2.488 |
| Total Diff. | 0.054 | 0.052 |
| Int. Diff. | 0.013 | 0.015 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |