Tennis String Advisor is an online platform dedicated to tennis enthusiasts. It offers:
A catalog of more than 120 racquets and more than 170 strings
A configurator to combine racquet, string and tension
An RCS calculator: the firmness index of a setup
Expert guides and articles
Yes! Access to the catalog, configurator and blog is completely free.
Only the RCS calculator is limited to 1 free use. For unlimited calculations
and advanced features, a Premium subscription is available.
You can delete your account from your "My Account" area or by contacting us
at pleneuftrading@gmail.com. Deletion is permanent and results in the loss of all your data.
On the login page, click "Forgot password?".
You will receive an email with a link to reset your password.
The Premium subscription includes:
✅ Unlimited RCS calculations
✅ Unlimited setup saving
✅ String journal for stringers
✅ Price alerts on your favorite products
✅ PDF export of your setups
✅ Priority support
€4.99
/month
€49.99
/year
nearly 2 months free
You can cancel at any time from your "My Account" → "Subscription" area.
Cancellation takes effect at the end of the current period. You keep Premium access until that date.
The RCS (Recommendation Comfort Score) is a firmness index of your tennis setup. It combines the racquet's RA stiffness, the string's stiffness and the tension: the higher the index, the firmer the setup.
On the scale published by Tennis String Advisor: below 20, very comfortable; 20 to 25, comfortable; 25 to 30, standard; 30 to 35, firm; 35 and above, very firm, with a tennis elbow risk.
No. The RCS score is a decision-support tool based on technical data.
It does not replace medical advice. In case of pain or injury (tennis elbow, etc.),
consult a healthcare professional.
Developing the RCS calculator required significant research work.
The free version allows you to test the tool, while the Premium subscription
funds its continuous improvement and provides unlimited calculations.
The choice depends on your level and playing style. Check out our
racquet catalog
or use our configurator
for personalized recommendations.
Tension depends on several factors:
Low (40-48 lbs / 18-22 kg): More power and comfort
Medium (48-55 lbs / 22-25 kg): Balance
High (55-65 lbs / 25-30 kg): More control
Use the RCS calculator
to evaluate tension's impact on comfort.