Tennis · Stringing
String Tension Calculator
Racket · String · Environment · Pro Reference
Unit
Racket
▾
Head
97 in²
Swing wt
330
RA
Med-flex (64)
Pattern
16×19
RA 64 confirmed. SW ~328–333. Paradigm Bending gives softer feel than RA suggests. Pre-stretch strongly recommended with stiff poly.
String
▾
● Very stiff
String 15–20% lower than standard.
Play style
Level
Recommended
24.5 kg
Range
22.7 – 25.9 kg
Also as
54 lbs (50–57 lbs)
17 kg power24 kg balanced33 kg control
Blue band = manufacturer range: 22.7–27.2 kg for Wilson Pro Staff 97 v14
Power
Medium
Control
Medium
Spin
High
Comfort
Stiff
Durability
Excellent
Arm stress
Moderate
Benchmark stiff poly. String 1–2 kg lower than softer strings. Loses ~4–5 lbs in first 24h — pre-stretch strongly recommended.