String brand

Gamma strings

5 Gamma strings rated for junior players: polyester, multifilament, synthetic gut. USA, since 1974.

Strings reviewed5Polyester · Multifilament · Synthetic gut
Price per set$4–19USD, typical retail
Arm-friendly4Score 4 or 5 of 5
Youngest age6+Lowest recommended age

About Gamma

Gamma Sports was founded in 1974 by nuclear engineer Dr. Harry Ferrari, who was dissatisfied with the synthetic gut strings available at the time. He developed the patented GAMMA irradiation process to improve synthetic strings, leading to GAMMA Gut which held the #1 string title from the United States Racquet Stringer's Association for 23 years. In 2004, GAMMA Live Wire Professional Synthetic String became the first synthetic string to rank ahead of natural gut in Overall Performance. Gamma is also renowned as the #1 stringing machine brand with over 40 years of industry-leading innovation.

  • Moto - 7-edge control poly compared to ALU Power Spin
  • Zo Verve - co-extrusion poly with 15.4% bite percentage
  • #1 stringing machine brand for 40+ years
  • Pioneered gamma irradiation process for synthetic strings

Brand facts verified 2025-01. Official site: gammasports.com.

Every Gamma string we cover

Multifilament $15–18 / set

Gamma

Live Wire XP

Multi-fiber construction with soft outer wrap

Power
8
Spin
6
Control
6
Comfort
9
Arm friendliness 5 of 5 Arm 8+ yrs
Polyester $10–12 / set

Gamma

Moto

Heptagonal (7-sided) co-polyester monofilament

Power
5
Spin
8
Control
9
Comfort
5
Arm friendliness 2 of 5 Arm 14+ yrs
Synthetic gut $4–6 / set

Gamma

Synthetic Gut with WearGuard

Super Resilient Dynalon solid center core with WearGuard wear-resistant outer wrap, irradiated for elasticity

Power
7
Spin
5
Control
6
Comfort
7
Arm friendliness 4 of 5 Arm 6+ yrs
Synthetic gut $14–15 / set

Gamma

TNT2

Elastalon solid center core with outer wraps, pearl coating and TNT2 processing for energy return

Power
8
Spin
6
Control
7
Comfort
8
Arm friendliness 4 of 5 Arm 8+ yrs
Polyester $16–19 / set

Gamma

Verve Soft

AMP co-extrusion co-polyester with three protruding filaments

Power
7
Spin
9
Control
7
Comfort
7
Arm friendliness 4 of 5 Arm 12+ yrs

At a glance

Gamma strings with ratings
String Type PowerSpinControlComfortDurability Arm Set price
Live Wire XP Multifilament 86695 5/5 $15–18
Moto Polyester 58958 2/5 $10–12
Synthetic Gut with WearGuard Synthetic gut 75677 4/5 $4–6
TNT2 Synthetic gut 86786 4/5 $14–15
Verve Soft Polyester 79776 4/5 $16–19

Ratings are on a 1–10 scale; arm friendliness on a 1–5 scale.

Gamma head to head

Gamma strings: quick answers

What is the most arm-friendly Gamma string?

In our database it is Gamma Live Wire XP, with an arm-friendliness score of 5/5 and comfort 9/10. 4 Gamma strings score 4 or 5 for arm friendliness.

Which Gamma string has the most spin?

Gamma Verve Soft, with a spin rating of 9/10 and control 7/10. It is recommended from age 12.

How much do Gamma strings cost?

Typical retail for a single set runs from $4 to $19 across the 5 Gamma strings we cover. Reels lower the cost per restring.

Are Gamma strings good for juniors?

It depends on the string. The youngest recommended age across Gamma's range is 6. Check each string's minimum age, arm score and junior tension advice before you buy.