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Gamma

Poly Z 16

Polyester Gauge 16 1.30 mm In production

Lab measurements for Gamma Poly Z 16, ranked against all 789 strings in the database. Every figure below is a testing-machine result at a fixed reference tension, not a playtest opinion.

Measured values

Stiffness

180lb/in

lower = softer, kinder on the arm

Tension loss

52%

lower = stays where you strung it

Energy return

81%

higher = livelier, more free power

Spin potential

5.4

higher = more spin off the string bed

Ball bite

0.396COF

higher = grabs the ball harder

Snapback

0.074COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 180 lb/in · 46th pct

Stiffer than 46% of strings tested.

Tension loss 52 % · 91st pct

Sheds more tension than 91% of strings tested — goes dead fast, expect frequent restringing.

Energy return 81 % · 4th pct

Livelier than 4% of strings tested — very muted and low-powered.

Spin potential 5.4 · 67th pct

More spin potential than 67% of strings tested.

Ball bite 0.396 COF · 21st pct

Grips the ball harder than 21% of strings tested.

Snapback 0.074 COF · 11th pct

More string-on-string friction than 11% of strings tested.

Strings that play like this

Closest matches across stiffness, tension loss, energy return and spin potential.

Solinco Outlast 17 95% match MSV Hepta-Twist 17 94% match Gosen Polylon Comfort 16 94% match Wilson Revolve Spin 16 94% match Polyfibre Hexablade 17L (1.18) 93% match Pacific Poly Power Pro 16L (1.25) 93% match

More from Gamma

What these numbers mean

Stiffness · lb/in

How much the string bed resists deflection. Higher plays firmer and more controlled; lower plays softer and easier on the arm.

Tension loss · %

Share of the reference tension the string sheds under a fixed test protocol. Lower means the bed stays where you strung it for longer.

Energy return · %

Share of impact energy handed back to the ball. Higher plays livelier and more powerful.

Spin potential

Ball friction divided by string-on-string friction. Higher means better bite with a cleaner snapback, so more spin.

Ball bite · COF

String-on-ball friction. Higher grabs the ball harder through the brush.

Snapback · COF

String-on-string friction. Lower lets the mains slide and snap back into place after impact.

Compare Poly Z 16 against 789 strings Find the right string for me