Bracket Generator

Bracket generator for any knockout tournament: 2 to 64 entrants, seeded or random draw, byes for the top seeds, click winners through and print the bracket.

Entrants

Bracket

Tap a name to send it to the next round. Tap again to undo. Byes go to the top seeds so nobody plays an extra round.

Maths checked by Josh Miller · updated Nov 2026How we calculate →

A bracket generator turns a list of names into a knockout draw. Ten entrants make a 16-slot bracket: six byes in round one, then quarter-finals, semis and a final, nine matches in all. The free generator above seeds the list in order (1 plays the lowest seed, and 1 and 2 can only meet in the final) or draws it at random, and you click each winner through to the next round.

Bracket generator: seeding and byes

A knockout needs a power of two: 4, 8, 16, 32 or 64 slots. When the entry count falls short, the gap is filled with byes, and the byes go to the top seeds so the best players aren’t punished with an extra game.

Entrants Bracket size Byes Rounds Matches
6 8 2 3 5
10 16 6 4 9
12 16 4 4 11
20 32 12 5 19
48 64 16 6 47

There’s always one match fewer than the number of entrants, because every match knocks exactly one out.

Running the tournament

Tap a name to send it through. Change your mind and tap again: everything that depended on it clears. Name the event, print the bracket for the wall or copy it as text. It works for darts nights, pool and snooker, FIFA tournaments, chess, office pools and anything else with a winner and a loser.

Want everyone to play everyone instead? The round robin generator makes a league schedule. For the college basketball tournament with seed-based upset odds, use the March Madness bracket generator.

For a league where everyone plays everyone, use the fixture generator instead.

Frequently asked questions

How do you make a tournament bracket?

List the entrants in seed order, round the count up to a power of two and give the spare slots to the top seeds as byes. The generator does this automatically.

How many byes do I need?

The bracket size minus the number of entrants. Ten entrants in a 16 bracket need six byes.

How many matches in a knockout tournament?

One fewer than the number of entrants. 32 players play 31 matches.

Can I print the bracket?

Yes. Use the Print button, or Copy to paste it as text.

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