Tennis Rating Lab

Independent tennis rating tools

Know what your tennis results actually mean.

Free tools for understanding NTRP, UTR and your tennis match performance. Enter your results — everything is calculated locally, with no lookups and no accounts.

Try the Match Impact CalculatorConvert NTRP ↔ UTR

Start with a tool

01

Match Impact Calculator

Did that match help your rating?

Enter your estimated rating, your opponent's estimated rating and the match score to understand how strong the performance was.

Calculate Match Impact
02

NTRP ↔ UTR Converter

How does your NTRP compare to UTR?

See the approximate UTR range associated with an NTRP level.

Convert Rating
03

Dynamic Rating Estimator

Estimate your dynamic NTRP direction

Enter several recent singles matches to see what level your results resemble and how an independent modeled estimate could be trending.

Estimate My Rating

Understand Your Rating

Clear, honest answers to the tennis-rating questions players actually ask — each one leading into a tool you can use right away.

What Is Dynamic NTRP?The rating that moves with every match you play.How Is NTRP Calculated?Expected performance versus what actually happened.Does Match Score Affect NTRP?Why 6–0, 6–0 and 7–6, 7–6 are not the same win.Can Your Rating Increase After Losing?A strong loss can still be a strong performance.Can Your Rating Decrease After Winning?A narrow win can fall short of expectation.NTRP vs UTRTwo rating systems, two very different philosophies.How Accurate Is TennisRecord?Unofficial estimates versus official USTA values.When Does TennisRecord Update?Why recent results can take time to appear in a third-party estimate.TennisRecord vs USTAUnofficial estimates, published ratings, and unpublished Dynamic NTRP.Why Is TennisRecord Not Updating?A practical guide to missing matches and delayed estimate changes.NTRP Rating ChartA quick chart of NTRP levels from 2.0 through 5.0+.NTRP Levels ExplainedWhat each level actually looks like on court.3.5 NTRP to UTRHow the broad 3.5 NTRP band overlaps with UTR.4.0 NTRP to UTRWhy competitive 4.0 results can map to different UTR values.4.5 NTRP to UTRHow opponent quality and results shape a 4.5 player's UTR.

Tennis Rating Lab is an independent estimation and educational tool. It is not affiliated with or endorsed by USTA or UTR Sports. USTA does not publish its complete Dynamic NTRP algorithm, so calculations shown here are estimates and should not be interpreted as official ratings.