Single Elimination Bracket Generator

What is a single elimination bracket?

A single elimination bracket — also called a knockout bracket, sudden-death bracket, or just “the bracket” — is the most common tournament format in the world. Teams are paired into matches, the loser of each match is immediately eliminated, and the winner advances to the next round until only one team is left standing as the champion.

It is the format used in the FIFA World Cup knockout stage, Wimbledon, the NFL playoffs, and virtually every esports grand final. Its biggest strengths are speed and drama: a 128-team field is decided in just 7 rounds, and every match matters because one loss ends a team’s run.

How to use this bracket generator

The whole flow takes under a minute and works entirely in your browser — no sign-up, no waiting:

• Pick the number of teams (2–128). Slots that are not a power of two are handled automatically with byes.
• Optionally name each team, one per line. Empty lines become “Team 1”, “Team 2”, and so on.
• Enable the third-place match if you want the two semifinal losers to play for bronze.
• Click “Generate bracket”, then click the winner of each match as games finish. The bracket advances instantly.
• Use random draw to shuffle seeds before generating, or export the finished bracket as PNG or SVG.

Seeding and byes, explained

This generator uses standard tournament seeding, the same layout used by professional events: seed 1 meets the lowest seed in the first round, seed 2 is placed in the opposite half, and so on, so the highest seeds can only meet in the latest possible round.

When the team count is not a power of two (for example 6, 12, or 20 teams), the bracket is padded to the next power of two and the missing slots become byes. Byes are always awarded to the top seeds, who advance to round 2 automatically — the widely accepted convention for knockout tournaments.

How many rounds and matches do you need?

A single elimination tournament with N teams always needs exactly N − 1 matches, and the number of rounds is the base-2 logarithm of the padded bracket size:

When to choose single elimination

Choose single elimination when you need a champion quickly, the field is large, and early exits are acceptable. It is ideal for weekend cups, community esports events, school sports days, and office competitions.

If losing teams should get a second chance, use our double elimination bracket generator instead. If every team should play several matches regardless of results, a round robin generator is the better fit — and for large fields with a fixed number of rounds, consider the Swiss system.

Go beyond the free bracket

This page is a fully free tool, and your progress is saved in your browser automatically. Create a free account when you want to keep tournaments long-term: you get a public share page for participants, self-service registration, score recording by assigned referees, match scheduling with times and venues, and image exports for social media.

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