Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Brunswick Combat
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Roto Grip RST Hyperdrive Pearl
|
Roto Grip Transform Pearl
|
Brunswick Strategy
|
|
|---|---|---|---|---|
| Brand | Brunswick | Roto Grip | Roto Grip | Brunswick |
| Line | Pro | HP4 | HP5 | Pro |
| Coverstock | HK22C - Alpha Premier Pearl | U-R1 Pearl | Microtrax Pearl | HK22C² - EVO Pearl |
| Cover type | Pearl reactive | Pearl reactive | Pearl reactive | Pearl reactive |
| Core | Rampart | RST AI | Morph Wing | Dual Centric |
| Core type | Asymmetric | Asymmetric | Asymmetric | Asymmetric |
| RG | 2.502 | 2.510 (16 lb) | 2.500 (16 lb) | 2.509 |
| Diff | 0.051 | 0.051 (16 lb) | 0.050 (16 lb) | 0.047 |
| Int. diff | 0.019 | 0.016 | 0.015 | 0.016 |
| Factory finish | 500, 1000, 1500 Siaair / Crown Factory Compound | Power Edge | Power Edge | 500, 1000, 1500 Siaair / Crown Factory Compound |
| Lane condition | — | — | — | — |
| Flare potential | — | High | High | — |
| Reaction | — | — | — | — |
| Color | Black / Red / Blue / Purple | Space Blue / Deep Purple | Red / Cherry / Shadow | Black / Blue / Silver |
| Release date | August 14, 2025 | September 19, 2025 | July 10, 2026 | April 16, 2026 |
| Status | Retired | Current | Current | Current |
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