How it works
The whole run of a tournament, start to finish, so you know what you're getting into before you set one up. It takes about five minutes of actual work. Nothing below depends on which game you're playing — see the sports people run if you're wondering whether yours fits.
A name is the only thing you have to decide. The three other choices all have sensible defaults, but they're worth understanding, because two of them lock once you draw teams.
Type them in one at a time, or open the tournament's sign-up link — there's a QR code for it — and let people add themselves from their phones while you're still setting up.
Self sign-ups land as pending and don't join the roster until you approve them, so a stray scan or a joker typing nonsense never quietly ends up in your bracket. You'll want an even number of players, four at minimum.
One button pairs every approved player at random into two-person teams. If you chose automatic seeding, this also seeds them, builds the bracket, and starts play in a single step. If you chose manual, you get the ladder to reorder first.
Don't like the pairings? Redraw them as many times as you want, right up until you generate the bracket.
Your teams get slotted into the nearest bracket that fits them — 8 teams into 8 slots, 9 teams into 16. In single elimination, losing once ends your run.
In double elimination the same tree becomes the winners bracket, and a second losers bracket runs alongside it collecting everyone knocked out of the first. The two survivors meet in a grand final. If the team coming up from the losers bracket wins it, both sides have one loss each and a single deciding rematch is played.
When the count isn't a clean power of two, the leftover slots become byes: the teams facing them advance automatically without playing a first-round match. That's normal and it's why a 9-team tournament shows fewer matches than you might expect — a bye is a free pass, not a game.
Tap in each match's score as it finishes. The winner advances to the next round on its own — you never move anyone by hand — and the public bracket updates for everyone watching the moment you save.
Players who gave an email address when they signed up can get results mailed to them as rounds complete. It's opt-in on their end: they confirm once by tapping a link, and can unsubscribe from any message after that.
Running the scores is its own screen, too — it lists just the matches that can be played right now, so whoever's keeping score isn't hunting through a whole bracket on their phone between games.
Open the bracket on any TV, streaming stick, or laptop plugged into a screen and switch on TV mode: the site's own furniture disappears and the bracket scales up to fill the display, refreshing itself as scores land. No app, no cast, nothing to install — it's a web page, so bookmark it once and the screen looks after itself for the rest of the day.
For everyone not standing in front of that screen, print a sign. Bracketway makes you a full-page QR sheet — one to follow the bracket from a phone, one to sign up — ready to print or save as a PDF.
Score the final and the tournament closes itself out, champion and all. It stays up afterwards — the bracket link keeps working, so people can go back and argue about the semifinal for as long as they like.
You don't have to run everything yourself. A tournament's owner can add other people as managers (full setup control) or scorekeepers (score entry only, no ability to change the roster or the bracket). Handy when you want a friend at the far end of the venue entering scores without being able to redraw your teams by accident.