🩺 RCS Calculator

Racquet Comfort Score - Evaluate the joint stress of your configuration

Based on research by Brody (1987), Hennig (1992), Kawazoe (1997)

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What is RCS?

The RCS score (0-100) evaluates the stress on your joints (elbow, shoulder, wrist) based on your equipment. A low score = more comfort, a high score = more performance but more joint stress.

🎾 Racquet Stiffness (RA)

Select a racquet:

RA Index

54 (Flexible) 63 (Medium) 72 (Stiff)

🧵 String Stiffness

Select a string:

180

lb/in

88 (Gut) 180 (Multi) 275 (Stiff Poly)

Quick presets by type:

⚡ String Tension

18 kg (Low) 24 kg (Medium) 30 kg (High)

💡 Tip: Low tension (18-22 kg) favors comfort, high tension (26-30 kg) favors control.

👤 Your Profile (optional)

Select your profile for a personalized evaluation.

RCS Score

⚖️ D5 - Balanced Flexible

Average club level

0 - Maximum Comfort 50 - Balanced 100 - Maximum Performance

📋 Detailed Analysis

📊 Score Contributions

🎾 Racquet (RA) 14.0 pts

🧵 String 26.5 pts

⚡ Tension 11.0 pts

🔗 Interaction 1.3 pts

The string is generally the dominant factor (~42%), followed by the racquet (~28%) and tension (~22%).

The RCS score is divided into 5 main zones for easier interpretation:

Click on a cell to apply that configuration:

RA \ String	🥩 Gut (95)	🧶 Multi (155)	🔸 Synth (185)	⬛ Poly (235)

* Values calculated with average tension of 24 kg

🔬 About the RCS Score

Methodology

The RCS score is calculated using a proprietary algorithm developed by Tennis String Advisor, integrating the latest research in tennis biomechanics.

Scientific Validation

Our model is based on reference works in tennis science and has been calibrated on real data from players of all levels.