Head to head
Head Ultra Tour 16 vs Pacific Poly Force 16L
Ultra Tour 16 leads on 3 of 6 measurements. The widest gap is ball bite, where Ultra Tour 16 is 15 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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Ultra Tour 16428th
Poly Force 16L439th
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Ultra Tour 16593rd
Poly Force 16L659th
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Ultra Tour 16249th
Poly Force 16L202nd
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Ultra Tour 16583rd
Poly Force 16L623rd
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Ultra Tour 16602nd
Poly Force 16L613th
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Ultra Tour 16305th
Poly Force 16L134th
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Ultra Tour 16605th
Poly Force 16L646th
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 Ultra Tour 16 at 52 lb
String Poly Force 16L at 46.0 lb 20.9 kg
Coming from Poly Force 16L at 52 lb
String Ultra Tour 16 at 58.1 lb 26.4 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.
Ultra Tour 16 mains / Poly Force 16L crosses
Poly Force 16L mains / Ultra Tour 16 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.
Ultra Tour 16
~17 hours of play
Poly Force 16L
~16 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Head Ultra Tour 16 Polyester | 16 | find | 202 | 45 | 86 | 4.5 | 0.394 | 0.087 |
| Pacific Poly Force 16L Polyester | 16L | find | 208 | 46 | 86 | 4.5 | 0.361 | 0.081 |
Add a third string Ultra Tour 16 in full Poly Force 16L in full