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Tournament bracket calculator

A knockout tournament eliminates one player per match, so the match count is always one less than the field.

Total matches
23
≈ Rounded Tournament structure
Rounds
5
Bracket size
32
Byes needed
8
First-round matches
8
Total running time
2:52:30
Matches per player
5.0
Show the working
  1. Entrants = 24
  2. Format = 1
  3. Minutes per match = 30
  4. Courts or tables = 4
  5. Rounds = ceil(log2(24)) = 5
  6. Bracket size = 2^5 = 32
  7. Byes needed = 32 - 24 = 8
  8. Total matches = 1 == 1 ? 24 - 1 : 1 == 2 ? 2*24 - 2 : 24*(24-1)/2 = 23
  9. total_minutes = 23 * 30 / 4 = 172.5
  10. Total running time = 172.5 * 60 = 10 350
  11. Matches per player = 1 == 3 ? 24 - 1 : 5 = 5
  12. First-round matches = 24 - 32/2 = 8

Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.

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    The formula

    • single elimination: matches = players - 1
    • double elimination: matches = 2 x players - 2
    • round robin: matches = n(n-1)/2

    Byes go to the highest seeds, which is why seeding matters most when the field is not a power of two.

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