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

Gamma

Ocho XP 16 (1.32)

Nylon · 16 ga

Tecnifibre

X-One Biphase 18

Nylon · 18 ga

Stiffness lower = softer, kinder on the arm
14911th pct
1469th pct
Tension loss lower = stays where you strung it
1916th pct
1914th pct
Energy return higher = livelier, more free power
9384th pct
9386th pct
Spin potential higher = more spin off the string bed
3.09th pct
1.61st pct
Ball bite higher = grabs the ball harder
0.44050th pct
0.3656th pct
String friction lower = strings slide and snap back
0.14993rd pct
0.22499th pct

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.

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

Stiffness10th pct · 1 measured
Tension loss15th pct · 1 measured
Energy return86th pct · 1 measured
Spin potential7th pct · 1 measured
Ball bite43rd pct · 1 measured
String friction96th pct · 1 measured

X-One Biphase 18 mains / Ocho XP 16 (1.32) crosses

Stiffness10th pct · 1 measured
Tension loss14th pct · 1 measured
Energy return86th pct · 1 measured
Spin potential1st pct · 1 measured
Ball bite11th pct · 1 measured
String friction98th pct · 1 measured

Open this in the hybrid builder

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

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Gamma Ocho XP 16 (1.32) Nylon16find14919933.00.4400.149
Tecnifibre X-One Biphase 18 Nylon18$17.9614619931.60.3650.224

Add a third string Ocho XP 16 (1.32) in full X-One Biphase 18 in full