Run a chess tournament without the headache.
Chess Caddy handles registration, pairings, results, and live standings for Swiss, round-robin, knockout, and Bughouse events — all from one laptop, even with no internet. You run the room; it does the math.
No sign-up. Works offline. Your data stays in your browser.
Everything you need
Built for the person running the room
No spreadsheets, no pairing cards, no second-guessing the math. Just the four things that actually make a club tournament work.
Four tournament formats
Swiss, round robin, single-elimination knockout, and Bughouse (teams of two) — each with automatic pairings, no rematches, and fair byes.
Works fully offline
Run the whole event with no internet. Everything saves to your browser, so a dropped connection never stops play.
Live standings & tiebreaks
Enter a result and the leaderboard updates instantly — with Buchholz tiebreaks and medals for the top three.
Print & share
Post pairings on the wall or hand out standings. Export the whole tournament as a file to back up or reopen later.
Easy player management
Add players in seconds, edit on the fly, and withdraw or re-enter anyone without breaking the standings.
Nothing to install
Open it in any browser and start. No account, no setup, no cost — and your player data never leaves your device.
How it works
From sign-in sheet to final standings in three steps
If you can run a club night, you can run Chess Caddy.
Set up & add players
Name the tournament, pick the number of rounds, and type in your players with optional ratings.
Pair the round, enter results
Tap to generate pairings and board assignments, then click each result as games finish.
Watch the standings settle
The leaderboard updates live with tiebreaks. Repeat each round, then crown your champion.
Guides & how-tos
How to run the tournament, not just the software
Six guides for the person organising the event — pairings, byes, tiebreaks, rounds and formats. Every rules claim is checked against the current FIDE and US Chess texts.
How to run a Swiss tournament
The full director’s guide: pairings, colours, byes, forfeits and the running order for the night.
How many rounds should you run?
The maths, a table up to 200 players, and a calculator that tells you whether it fits in the hours you have.
Buchholz tiebreak explained
Buchholz, Cut-1, Median-1 and Sonneborn-Berger with worked examples — plus how byes are counted.
Round robin tournaments
The circle method, Berger tables, quads, and what to do when somebody withdraws halfway through.
Knockout brackets
Bracket size, byes and seeding — and what to do when a knockout game ends in a draw.
Free tournament software compared
An honest comparison, published by the people who make one of the tools. Verified prices.
Chess 960 generator & guide
Roll a legal Fischer Random position — and the castling rule that catches everyone out.
Browse all guides · Quick answers instead? The FAQ covers 36 of the questions organisers ask most.
Ready to run your next tournament?
It's free and instant in your browser — or grab the iPhone & iPad app.