How to Estimate Your NTRP Rating From Match Scores
To estimate your NTRP rating from match scores, look at how many games you won against an opponent of a known level and compare that to what an even match would predict. Winning a large share of games against a strong opponent points to a higher rating, while losing most games against a weaker one points lower. Average that signal across several matches to land on a stable estimate. The number you get approximates your hidden dynamic rating, which always carries two decimals and is recalculated after every match.
The core idea: game share versus opponent level
NTRP does not care whether you won or lost. It cares by how much, and against whom. The system builds an expected game result for each match based on the two players' ratings, then compares that expectation to the actual score. The gap moves your rating up or down.
So the two inputs that matter for an estimate are simple. First, the opponent's level, which sets the bar. Second, your game share, meaning the fraction of games you took in the match. Beating a 4.0 player 6-3, 6-4 is strong evidence; scraping past a 3.0 player 7-6, 7-5 is weak evidence even though both are wins.
Walking through one match
Say you play a 3.5 opponent and win 6-2, 6-3. You took 12 of 18 games, about two thirds. Against an evenly matched 3.5, you would expect to split games near half and half. Taking two thirds suggests you played above 3.5 in that match, so the single-match estimate lands somewhere in the 3.6 to 3.8 range depending on how the scoring model weights the margin.
Now flip it. You lose to that same 3.5 by 6-4, 6-4, taking 8 of 20 games. That is a hair under expectation for an even match, nudging your single-match estimate slightly below 3.5. The opponent's level anchors everything; the score tells you which direction and how far to move.
Averaging across matches for a stable number
One match is noisy. A bad day, a tough draw, or a tiebreak that went the wrong way can swing a single result. The dynamic rating smooths this by recalculating after every match and carrying the result forward, which is why it lives at two decimals rather than snapping to a band.
To estimate it yourself, compute a per-match figure as above, then average across your recent matches, giving a little more weight to recent and higher-confidence results. A transparent NTRP estimator does exactly this: it takes your real scores and opponent levels, runs the expected-versus-actual comparison, and returns an estimate plus where you sit relative to the next band threshold. It is unofficial, but it mirrors the logic the official system uses.
Frequently asked questions
Do I need my opponents' exact ratings?
Their published NTRP level is enough for a useful estimate. The closer your assumed opponent levels are to reality, the tighter your estimate, but even rounded levels give you a workable direction and range.
Can a single blowout win bump my estimate a lot?
It can move it, but the system and any good estimator average across matches, so one result rarely dominates. Consistency across several matches is what produces a confident estimate.
Is this the same as my official rating?
No. An estimate approximates the hidden dynamic rating, which USTA never publishes. Your official published rating still comes from USTA, but a transparent estimate helps you see roughly where you stand.
Unofficial. NTRP and USTA are trademarks of the United States Tennis Association; this site is independent and not affiliated with the USTA. Your official rating lives in TennisLink.