Head to head

Alpha Gut 2000 16 vs Tecnifibre X-One Biphase 17

Gut 2000 16 leads on 4 of 6 measurements. The widest gap is ball bite, where Gut 2000 16 is 17 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Alpha

Gut 2000 16

Nylon · 16 ga

Tecnifibre

X-One Biphase 17

Nylon/Polyurethane · 17 ga

Stiffness lower = softer, kinder on the arm
15925th pct
16735th pct
Tension loss lower = stays where you strung it
178th pct
155th pct
Energy return higher = livelier, more free power
9490th pct
9490th pct
Spin potential higher = more spin off the string bed
3.111th pct
2.12nd pct
Ball bite higher = grabs the ball harder
0.50680th pct
0.46463rd pct
String friction lower = strings slide and snap back
0.16195th pct
0.22599th 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 Gut 2000 16 at 52 lb

String X-One Biphase 17 at 47.4 lb 21.5 kg

Coming from X-One Biphase 17 at 52 lb

String Gut 2000 16 at 55.6 lb 25.2 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.

Gut 2000 16 mains / X-One Biphase 17 crosses

Stiffness29th pct · 1 measured
Tension loss7th pct · 1 measured
Energy return90th pct · 1 measured
Spin potential8th pct · 1 measured
Ball bite77th pct · 1 measured
String friction97th pct · 1 measured

X-One Biphase 17 mains / Gut 2000 16 crosses

Stiffness31st pct · 1 measured
Tension loss6th pct · 1 measured
Energy return90th pct · 1 measured
Spin potential3rd pct · 1 measured
Ball bite66th 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.

Gut 2000 16

~38 hours of play

X-One Biphase 17

~39 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Alpha Gut 2000 16 Nylon16$8.4915917943.10.5060.161
Tecnifibre X-One Biphase 17 Nylon/Polyurethane17$17.9616715942.10.4640.225

Add a third string Gut 2000 16 in full X-One Biphase 17 in full