Tennis Rating Calculator

The Tennis Rating Calculator estimates your NTRP Tennis Rating based on match scores and opponent skill levels. This tool helps tennis players understand exactly how a specific match changes their standing for league placement. Whether you are tracking improvement after a win or analyzing the impact of a close loss, this calculator provides instant feedback. It uses the reliable Elo algorithm to ensure your rating reflects your true performance on the court.

NTRP Scale (1.0 - 7.0)
NTRP Scale (1.0 - 7.0)
Total games won in the match
Total games lost in the match

How NTRP Tennis Rating Is Calculated

Your NTRP Tennis Rating represents your skill level relative to other players on a standardized numerical scale. This tool uses the Elo Rating System, a proven method that predicts match outcomes and adjusts ratings based on how you perform compared to those expectations.

New Rating = Old Rating + K × (Actual - Expected)

Where:

  • New Rating = Your updated skill level
  • Old Rating = Your rating before the match
  • K = Maximum volatility adjustment factor
  • Actual = Percentage of games you won
  • Expected = Probability of you winning those games
  1. First, we calculate the expected score by comparing your rating to your opponent's rating to see who should win.
  2. Next, we determine your actual performance by dividing the number of games you won by the total games played.
  3. Finally, we apply the difference between actual and expected scores to your rating using a volatility factor.

Using this mathematical approach ensures that beating a stronger player raises your rating more than beating a weaker opponent, keeping the system fair and accurate.

What Your NTRP Tennis Rating Means

Your NTRP Tennis Rating indicates the specific skill level where you will find the most competitive and enjoyable matches. This number helps you avoid playing against opponents who are either too easy or too difficult for your current ability.

Understanding Your Level

Use your rating to guide your training and match play decisions.

Social Leagues: If your rating falls between 2.5 and 3.5, you should look for intermediate clubs or social leagues that focus on fun and consistency.

Competitive Play: Players rated 4.0 and above typically compete in serious USTA leagues or tournaments where strategy and power are essential.

Tracking Improvement: Watch for gradual increases of 0.1 or more over a season to confirm your practice is paying off.

Important Note: A single match can cause a small drop in your rating, but you should look at your rating trend over several games to see your true level.

This calculator provides an unofficial estimate based on the Elo system and is for informational purposes only. It is not an official USTA or NTRP rating. Always verify your official standing with your league coordinator.

Update your rating after every match to visualize your progress and identify areas where your game is growing.

Calculation logic verified using publicly available standards.

View our Accuracy & Reliability Framework →