Single Elimination Bracket Calculator. Enter the number of participants in your Single Elimination Bracket Calculator and get back the total number of rounds, byes, matches per round, and total games. Adjust the seeding type and see a full round-by-round breakdown — perfect for sports leagues, gaming tournaments, and competitions of any size. Also try the Roster Size Calculator.
A single elimination tournament is a format where each participant is eliminated after one loss. Winners advance through the bracket until only one champion remains. It is one of the most common formats for sports leagues, esports, and competitions. See also our Strength of Schedule Calculator.
Participants are paired into matches each round. The winner of each match advances to the next round, while the loser is eliminated. This continues until a single undefeated participant wins the final match and is crowned champion.
Byes occur when the number of participants is not a power of 2. The bracket size is rounded up to the next power of 2, and the difference between that number and the actual participant count equals the number of first-round byes. For example, 12 participants produces a 16-team bracket with 4 byes.
The total number of games always equals the number of participants minus one. Every participant except the champion must lose exactly once to be eliminated. For example, a 16-team bracket has 15 total games.
In single elimination, every loss results in elimination and competitors can be knocked out after just one game. In round robin, every participant plays every other participant, making it a better test of overall consistency — but it requires far more games and time to complete.
The number of rounds equals the base-2 logarithm of the bracket size (next power of 2 at or above the participant count). For example, 16 participants need 4 rounds; 32 participants need 5 rounds.
A third place match (also called a consolation final or bronze medal match) is an optional extra game played between the two semi-final losers. It determines who finishes third overall but adds one additional game to the total count.
Yes. This calculator handles any number of participants from 2 up to 256. It automatically calculates the correct bracket size, number of byes, rounds, and total games regardless of whether your participant count is a power of 2 or not. You might also find our calculate Total Matches, Teams per Pool & Matches per Pool — Round Robin Tournament useful.