Head to head
Gamma Ocho XP 16 (1.32) vs Tecnifibre X-One Biphase 18
They split the measurements 3–3. The widest gap is ball bite, where Ocho XP 16 (1.32) is 43 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.
Measured, side by side
Bars are percentile against all 791 strings, and the marked side is the one that measures better, which is not always the one you want. A firmer bed is worse for your elbow and better for your control, and no measurement knows which of those you came for.
Which one wins, by problem
Each string's standing on the site's rankings, out of every measured string in the database. This is where a comparison stops being arithmetic and starts being a decision.
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Ocho XP 16 (1.32)621st
X-One Biphase 18712th
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Ocho XP 16 (1.32)63rd
X-One Biphase 1838th
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Ocho XP 16 (1.32)737th
X-One Biphase 18762nd
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Ocho XP 16 (1.32)81st
X-One Biphase 1861st
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Ocho XP 16 (1.32)123rd
X-One Biphase 18103rd
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Ocho XP 16 (1.32)679th
X-One Biphase 18722nd
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Ocho XP 16 (1.32)70th
X-One Biphase 1853rd
Swapping between them: what tension?
Bed stiffness is published at one reference tension, so the only honest conversion is to scale it. These are starting points from 52 lb, not prescriptions. The calculator takes your own tension.
Coming from Ocho XP 16 (1.32) at 52 lb
String X-One Biphase 18 at 53.0 lb 24.0 kg
Coming from X-One Biphase 18 at 52 lb
String Ocho XP 16 (1.32) at 51.0 lb 23.1 kg
Hybrid: what if you used both?
Estimated, not measured. No hybrid combination has been tested as a bed. These figures are the two strings' own lab measurements weighted by how much of the bed each one actually is. Treat them as a guide to which way a pairing moves, never as lab data.
Ocho XP 16 (1.32) mains / X-One Biphase 18 crosses
X-One Biphase 18 mains / Ocho XP 16 (1.32) crosses
Which goes dead first?
Estimated from tension loss, which is the only thing the database measures about ageing. This is when the bed stops playing the way you strung it, not when the string breaks.
Ocho XP 16 (1.32)
~35 hours of play
X-One Biphase 18
~36 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Gamma Ocho XP 16 (1.32) Nylon | 16 | find | 149 | 19 | 93 | 3.0 | 0.440 | 0.149 |
| Tecnifibre X-One Biphase 18 Nylon | 18 | $17.96 | 146 | 19 | 93 | 1.6 | 0.365 | 0.224 |
Add a third string Ocho XP 16 (1.32) in full X-One Biphase 18 in full