About TennisDB

TennisDB is an independent ATP and WTA tennis reference for looking up players, results, rankings, head-to-head records, tournament history, Elo ratings, performance statistics, and all-time leaderboards.

The goal is to make it fast to answer tennis questions, compare players across seasons and eras, follow the current tours, and inspect the historical record from one place.

Player, match, and tournament pages bring related records together. Source notes, a statistics glossary, and downloadable tables help you check the numbers and cite them in context.

TennisDB is built and maintained by @mhonkasalo (opens in new tab). Questions, corrections, and inquiries can be sent through Contact or to [email protected].

Jeff Sackmann / Tennis Abstract

TennisDB's primary historical match, player, tournament, and ranking inputs through 2024 come from Jeff Sackmann's open ATP dataset (opens in new tab) and WTA dataset (opens in new tab).

These datasets are licensed under CC BY-NC-SA 4.0 (opens in new tab). TennisDB attributes the source, does not charge for access to Sackmann-derived historical statistics, and preserves the applicable ShareAlike terms for derived datasets.

BALLDONTLIE ATP and WTA APIs

BALLDONTLIE (opens in new tab) supplies live and current ATP and WTA matches, rankings, tournaments, and detailed statistics from 2025 onward. Historical WTA matches also use BALLDONTLIE to fill gaps in the open record. WTA rankings before 2025 use Sackmann’s more extensive historical snapshots.

Official tour and Olympic publications

Official ITF Olympic singles draws (opens in new tab) supply the complete medal-era archive from Seoul 1988 onward. Event-time NOCs are preserved, and gold counts as one TennisDB singles title.

Official ATP draw documents help reconstruct current draw positions where needed. Official ATP and WTA ranking or prize-money publications also supplement selected high-value historical and current facts. Records from different sources are matched to the same player and tournament profiles.

Wikidata / Wikimedia Commons

Selected player biographical data comes from Wikidata (opens in new tab). Player images are served from Wikimedia Commons (opens in new tab) under each file's stated free license; author and license details remain available on the source file page.

TennisDB Research uses tennis data to investigate questions about player development, performance, and careers.

Each study explains its findings, methods, and limitations, with source citations, accessible charts, downloadable results, and a PDF. The underlying analysis is preserved so the published findings can be checked.

Source records are checked for duplicates, matched to player and tournament profiles, and combined into a consistent tennis archive.

Ratings and career statistics are calculated before pages are served to keep browsing fast. Update labels show when the relevant data was last refreshed; live scores and historical records may update at different times.

Most values are direct source fields. Derived statistics use documented definitions in the Glossary; estimated dates are marked in the interface with an asterisk and explanatory tooltip.

Player, tournament, and match records are matched across sources, with reviewed corrections for conflicts. Category and round labels use consistent tennis terminology, while historical category changes are explained where they affect comparisons.

The ATP and WTA Data Quality & Coverage pages publish live counts, source policy, freshness, and accepted limitations. Reports are checked against source records, and confirmed errors are corrected across the affected pages.

• Fast current-season publication: recent results should reach public pages quickly after reliable upstream delivery.
• Partial but honest history: useful older information remains visible with sample sizes and limitations instead of being silently hidden.
• Stable, citable pages: canonical HTML, Markdown mirrors, structured data, feeds, and sitemaps should describe the same underlying facts.
• Corrections over concealment: surprising records are investigated and corrected or documented rather than smoothed away.
• Independent reference: TennisDB is not an official ATP, WTA, ITF, or tournament record.