FREE · FIDE 2026 READY

Run the tournament. Publish it live.

Manage Swiss, Round Robin and team events in the browser or on desktop. 28 tiebreak systems, TRF export and live public pages.

ChessPairings on web and desktop 28 tiebreaks FIDE 2026
bbpPairings v6Pairing engine
TieBreakServerTiebreak engine
TRF-16 / TRF-25FIDE export
Web + DesktopOperational continuity
ONE CONTINUOUS WORKFLOW

From the first registration to the final standings.

ChessPairings brings pairings, results, publishing and FIDE reporting into one clear experience for arbiters, organisers and players.

CHESSPAIRINGS.ORG

Built for real tournaments

Trusted open-source engines, a modern interface and continuity between web and desktop.

01

FIDE pairings

Dutch, Dubov, Burstein and Lim workflows powered by bbpPairings v6.

02

Live publishing

Share standings, rounds and registration without requiring an account.

03

Desktop app

Keep the tournament moving even when the internet does not cooperate.

04

Ready-to-use data

TRF-16, TRF-25, PDF, CSV and practical tools for arbiters.

NEW INITIATIVE / PUBLIC BETA

Meet Clever Chicken.

Our independent pairing engine for USCF tournaments has been exercised across thousands of reproducible scenarios. Now it needs experienced Tournament Directors.

Smart pairings.
Verifiable decisions.

9,795
reproducible benchmark cases
0
hash mismatches
AVAILABLE ON MICROSOFT STORE

Run tournaments offline with ChessPairings Desktop

The official Windows app for arbiters and organisers who need a complete, reliable workspace even without an internet connection.

  • Individual and team tournaments
  • Swiss system and Round Robin
  • bbpPairings and Gacrux
  • PDF, HTML, CSV and TRF reports
  • Local data and offline operation
  • Optional protected synchronization
Free · Windows 10/11 Discover ChessPairings Desktop →
ChessPairings Desktop dashboard for offline chess tournament management
STANDARDS, NOT SHORTCUTS

28 tiebreaks. FIDE 2026 rules. No paid tier.

Tournament logic stays verifiable and aligned with international standards. The service is free and its core engines are open source.

28recognised tiebreak systems
13language editions
0 €subscriptions or tiers
W
WORDPRESS

Bring tournaments to your WordPress site

The official plugin publishes calendars, players, pairings and standings on your club website.

Discover the plugin →
WHAT’S NEW

Latest release

Continuous improvements shaped by real tournaments.

Read the full changelog
v5.21.0-rc.47 Update August 19, 2026

Improved

  • FIDE Mode across the Web tournament workflow — Pairing, TRF26 data, mandatory 2026 tie-break descriptors and published competition ranks now use one consistent, fail-closed contract.
  • Team tournament support — Team pairing rules, team pairing numbers, requested byes, accelerations, TRF26 metadata and Team standings now follow the same controlled FIDE Mode workflow.
  • Production design and live fixes preserved — The release was rebuilt from the actual production code before deployment, retaining the current visual design, registration fixes and public pages.

Fixed

  • Tied ranks remain tied everywhere — Exact ties calculated by Gacrux are no longer converted back into ordinal positions by public pages, exports, APIs, notifications or Team views.
  • International and national ratings stay separate — Local estimates such as the Italian 1399 value can no longer be published or exported as a FIDE rating.
  • Public tournament links and pairing eligibility — Legacy public links are upgraded safely, private tournaments remain private, and PAB/requested-bye/forfeit states are handled consistently.

Validation

  • Production-shaped verification completed — The exact Web release passed populated-database migration rehearsals, automated regressions, 5,000 Gacrux standings cases, 5,000 BBPairings equivalence cases and live individual/Team canaries with no detected regression.
  • Recognition boundary — This release prepares ChessPairings for the FIDE TEC submission process; it is not yet FIDE approved or endorsed.

Your next tournament can start now.

Nothing to install for the web app. No account required to view public results.

Open the web app →