Butterfly Tenergy 64 vs JOOLA Dynaryz ZGR: Which Should You Buy?

UltraSpin comparison · 2026-06-10 · rubber

Butterfly Tenergy 64JOOLA Dynaryz ZGR
Our rating8.6/108.3/10
best_sideboth wings, but especially the backhand and for speed-first attackersforehand
controlmedium-highMedium-High
speedvery highExtreme
spinhigh but the lowest of the Tenergy lineExtreme
sponge_hardnessapproximately 36 degrees on the Butterfly scale (around 48 degrees ESN, plays nearer 45)57.5 degrees Shore C (hard)
typespring sponge high tension tensor, inverted topsheethybrid tacky tensor (pimples-in)
weight_uncut_gapproximately 70 (around 47 g cut at 2.1 mm)approx 56g (cut to 157x150mm)

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Butterfly Tenergy 64 is the fastest Tenergy with excellent spin-insensitive blocking and reliable backhand drive; it suits speed-first attackers who want to punch and counter spinny balls. JOOLA Dynaryz ZGR is a very hard tacky-tensor hybrid with extreme spin suited to advanced forehand attackers and power loopers at mid-to-long distance. Dynaryz ZGR has exceptional topspin on loops and counter-loops, tacky grip and multiple gears from touch to power. ZGR is very hard at 57.5 degrees, heavy at 56g cut, and demands high racket speed and technique. ZGR’s tacky feel fades after two months; Tenergy 64 is more durable. Tenergy 64 is lighter and more accessible across skill levels; ZGR is unforgiving and demanding but excels in extreme spin and grip.

FAQ

Which rubber is better for power loopers?

Dynaryz ZGR. Its extreme spin and hard sponge reward committed full strokes. Tenergy 64 is better for varied shots.

Which rubber is heavier?

Dynaryz ZGR at 56g cut is significantly heavier than Tenergy 64 at 47g cut, which can cause fatigue.

Can I use ZGR on a flexible blade?

Not recommended. ZGR needs a stiff carbon blade to express its extreme speed and spin. Tenergy 64 is more blade-versatile.

Which rubber suits intermediate players better?

Tenergy 64. ZGR is very hard and demanding, suited to players 1500+ USATT or equivalent.