Brand

IsoSpeed tennis strings

13 strings 13 in production Polyester 7 Nylon/Polyolefin 3 Polyolefin 2

Across the 13 measured IsoSpeed strings, the strongest signal is less spin potential than 89% of the database. Every measurement below is a testing-machine result at a fixed reference tension, not a playtest opinion.

Where IsoSpeed sits in the database

Stiffness25th pct · 13 measured
Tension loss57th pct · 13 measured
Energy return60th pct · 13 measured
Spin potential11th pct · 10 measured
Ball bite23rd pct · 10 measured
Snapback87th pct · 10 measured

Median percentile across the 13 measured IsoSpeed strings. A bar past halfway means the typical IsoSpeed string carries more of that measurement than the typical string overall — which is not the same as being better at it.

What to buy from IsoSpeed, by problem

The highest-placing IsoSpeed string on each of the site's rankings, with where it lands against every measured string in the database.

All 13 IsoSpeed strings

Tap a column heading to sort. Colour runs from weak to strong for that measurement, so a bright cell always means more of the good thing whichever way the raw number points.

IsoSpeed tennis strings, measured
StringGaugeStiff lb/inLoss %Power %SpinBite COFSnap COF
Axon Mono 16L Polyester16L20034893.20.3830.119
Axon Multi 16L Nylon/Polyolefin16L12629913.00.4320.146
Black Fire 17 Polyester1720539875.60.3860.069
Control 16 Nylon/Polyolefin161502591
Control Classic 16 Polyolefin1613632912.30.3860.170
Cream 17 (1.28) Polyester171782890
Energetic 17 Nylon/Polyolefin1715734901.90.4130.220
Energetic Plus 16 Nylon/Polyester1615522902.40.4100.169
Professional Classic 17 Polyolefin1713429911.60.3210.207
Pulse 16 Polyester1616557824.70.3460.074
Pulse 17 Polyester171595683
Pyramid 16 Polyester1617558847.00.5710.081
V18 19 (1.12) Polyester1918040875.10.4830.094

Other brands

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