How to plan a knockout bracket
Turn a headcount into a bracket, then check the schedule.
Enter the field size
Count confirmed entrants, not maybes.
Choose the format
Single elimination is fastest; double elimination gives everyone a second chance at more matches.
Check court time
Compare the estimate with your venue booking before publishing the draw.
What does this tool do?
A knockout bracket pads the field to the next power of two, sending the surplus entrants straight into round two as byes. This tool sizes the bracket, counts every match and converts the schedule into court time.
The Formula
Bracket size = next power of two ≥ entrants; byes = bracket size − entrants; matches = entrants − 1 (single elimination)Frequently Asked Questions
How are byes decided?
The field is padded to the next power of two and the surplus slots are byes, usually given to the top seeds. This calculator only counts them, so the organiser still decides who receives each bye.
How long does a bracket take?
With enough courts, each round runs in parallel and the event takes roughly rounds × match length. Fewer courts add rounds of waiting, which the court-time estimate captures.