Compare the specs of the Brunswick Endeavor and Brunswick Ultimate Defender 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 | Endeavor | Ultimate Defender |
| Cover Name | Activator Plus 3.0 Pearl | HK22 - ACT 3.0 Hybrid |
| Cover Type | Reactive Pearl | Reactive Hybrid |
| Box Finish | 500 / 1000 / 1500 SiaAir / Crown Factory Compound | 500 / 2000 SiaAir |
| Color | Sky Blue / Silver | Violet / Pink / Navy |
| Core Name | Tiered Hexagon | Portal X |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.540 | 2.473 |
| Total Diff. | 0.045 | 0.054 |
| Int. Diff. | 0.000 | 0.015 |
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