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Head to head

Tourna Irradiated 17 vs Wilson NXT Power 17 (1.26)

NXT Power 17 (1.26) leads on 3 of 6 measurements. The widest gap is energy return, where Irradiated 17 is 7 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Tourna

Irradiated 17

Nylon · 17 ga

Wilson

NXT Power 17 (1.26)

Nylon · 17 ga

Stiffness lower = softer, kinder on the arm
15416th pct
15822nd pct
Tension loss lower = stays where you strung it
179th pct
143rd pct
Energy return higher = livelier, more free power
9276th pct
9269th pct
Spin potential higher = more spin off the string bed
5.467th pct
5.569th pct
Ball bite higher = grabs the ball harder
0.47267th pct
0.48873rd pct
String friction lower = strings slide and snap back
0.08842nd pct
0.08842nd 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 Irradiated 17 at 52 lb

String NXT Power 17 (1.26) at 50.7 lb 23.0 kg

Coming from NXT Power 17 (1.26) at 52 lb

String Irradiated 17 at 53.4 lb 24.2 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.

Irradiated 17 mains / NXT Power 17 (1.26) crosses

Stiffness18th pct · 1 measured
Tension loss7th pct · 1 measured
Energy return73rd pct · 1 measured
Spin potential68th pct · 1 measured
Ball bite67th pct · 1 measured
String friction42nd pct · 1 measured

NXT Power 17 (1.26) mains / Irradiated 17 crosses

Stiffness19th pct · 1 measured
Tension loss5th pct · 1 measured
Energy return71st pct · 1 measured
Spin potential68th pct · 1 measured
Ball bite72nd pct · 1 measured
String friction42nd 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.

Irradiated 17

~37 hours of play

NXT Power 17 (1.26)

~39 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Tourna Irradiated 17 Nylon17find15417925.40.4720.088
Wilson NXT Power 17 (1.26) Nylon17$26.9515814925.50.4880.088

Add a third string Irradiated 17 in full NXT Power 17 (1.26) in full