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Head to head

Kirschbaum Competition 17L (1.20) vs Tourna Big Hitter Silver Rough 17

Big Hitter Silver Rough 17 leads on 3 of 6 measurements. The widest gap is stiffness, where Competition 17L (1.20) is 8 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Kirschbaum

Competition 17L (1.20)

Polyester · 17L ga

Tourna

Big Hitter Silver Rough 17

Polyester · 17 ga

Stiffness lower = softer, kinder on the arm
19057th pct
19765th pct
Tension loss lower = stays where you strung it
4577th pct
4271st pct
Energy return higher = livelier, more free power
8629th pct
8626th pct
Spin potential higher = more spin off the string bed
4.132nd pct
4.132nd pct
Ball bite higher = grabs the ball harder
0.42239th pct
0.42339th pct
String friction lower = strings slide and snap back
0.10367th pct
0.10266th 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 Competition 17L (1.20) at 52 lb

String Big Hitter Silver Rough 17 at 48.5 lb 22.0 kg

Coming from Big Hitter Silver Rough 17 at 52 lb

String Competition 17L (1.20) at 54.7 lb 24.8 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.

Competition 17L (1.20) mains / Big Hitter Silver Rough 17 crosses

Stiffness60th pct · 1 measured
Tension loss74th pct · 1 measured
Energy return28th pct · 1 measured
Spin potential32nd pct · 1 measured
Ball bite39th pct · 1 measured
String friction67th pct · 1 measured

Big Hitter Silver Rough 17 mains / Competition 17L (1.20) crosses

Stiffness62nd pct · 1 measured
Tension loss73rd pct · 1 measured
Energy return27th pct · 1 measured
Spin potential32nd pct · 1 measured
Ball bite39th pct · 1 measured
String friction67th 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.

Competition 17L (1.20)

~17 hours of play

Big Hitter Silver Rough 17

~19 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Kirschbaum Competition 17L (1.20) Polyester17Lfind19045864.10.4220.103
Tourna Big Hitter Silver Rough 17 Polyester17find19742864.10.4230.102

Add a third string Competition 17L (1.20) in full Big Hitter Silver Rough 17 in full