Gamma RCF-Obsidian 10 vs Gamma RCF-Obsidian 13
The Gamma RCF-Obsidian 10 is a 10 mm elongated paddle; the Gamma RCF-Obsidian 13 is a 13 mm elongated one. Across the 6 specs with a clearly better direction the RCF-Obsidian 10 takes 3 and the RCF-Obsidian 13 takes 2. Swing weights are within 0.0 of each other, so neither should feel noticeably quicker in hand. They retail for the same $159.99.
Two paddles from the same brand, so the differences are the ones the maker chose. Every number below is lab-measured, not a manufacturer claim.
Spec by spec
| Spec | GammaRCF-Obsidian 10 | GammaRCF-Obsidian 13 |
|---|---|---|
| Price | $159.99 | $159.99 |
| Core thickness | 10 mm | 13 mm |
| Static weightNeither is better — it's a feel preference. | 7.9 oz | 8.0 oz |
| Swing weightHigher = more power and plow-through; lower = quicker hands. | 116.0 | 116.0 |
| Twist weightHigher is more forgiving on off-center hits. | 5.87 | 6.18 |
| Balance pointHigher = more head-heavy. | 24.3 cm | 24.0 cm |
| Spin | 1,813 RPM | 1,893 RPM |
| Power | 55.0 MPH | 54.4 MPH |
| Pop | 36.1 MPH | 34.8 MPH |
| Firepower | 39 | 8 |
| Handle length | 5.8 in | 5.8 in |
| Grip size | 4.125 in | 4.125 in |
| Shape | Elongated | Elongated |
| Build | Gen 2 | Gen 2 |
| Surface | Raw Texture/Peel Ply | Raw Texture/Peel Ply |
| Face material | Carbon | Carbon |
| Spin rating | Low | Low |
| Certification | USAP | USAP |
Highlighted cells win a spec that has an unambiguously better direction (6 of them here). Swing weight, static weight and balance point are never highlighted — neither direction is better, they are feel preferences.
Where each one ranks
Gamma RCF-Obsidian 10
Gamma RCF-Obsidian 13
Percentiles are ranks against paddles measured by the same lab, never blended across labs.
Keep going
Open this in the interactive comparison to add up to two more paddles, or tune either one with lead tape on its own page: RCF-Obsidian 10 · RCF-Obsidian 13.
Static weight 7.9 oz vs 8.0 oz — a few grams of tape moves swing weight far more than static weight, so either can be pushed toward the other.