Tournament builders
Single Elimination Bracket Builder
Bracket size, byes, rounds and total matches for any number of entrants.
Free · instant · no sign-upDeterministic
Result
Participants16
Bracket size16
No byes needed.
Rounds4
Total matches15
Single elimination always = participants − 1.
| Round | Matches |
|---|---|
| Final | 1 |
| Semi-finals | 2 |
| Quarter-finals | 4 |
| Round of 16 | 8 |
Rounds from first to final.
The formula
Knockout structure
rounds = ⌈log₂N⌉; matches = N − 1
Source: Single-elimination bracket maths
What it means
- The classic knockout — lose once and you are out.
- Total matches are always participants minus one.
Limitations
- Non-power-of-two fields need byes in round one; seed to protect top entrants.
Educational only
This is a deterministic tool: the same inputs always give the same result. It is for learning and planning, not a substitute for coaching or measurement.
Keep exploring
Follow the threads from this tool into the wider knowledge base.