How to Run a Single-Elimination Tournament

Confirm the list before drawing the bracket

Start with the people or teams who are actually playing. Give every entrant a distinct name and check the list aloud. Two people called Alex need a surname or number so a result cannot be assigned to the wrong person. Add late arrivals before the draw; adding them after matches begin changes somebody’s route through the event.

If individuals still need teams, use the team generator first and enter the resulting team names into the tournament bracket generator. FunBox accepts 2 to 32 entrants. Decide the match rules separately, including the winning score, any time limit, and how a tie is resolved. The bracket needs a winner to advance.

One loss ends participation in this format. If everyone has traveled expecting several games, consider a round-robin schedule instead, where entrants meet the other entrants. That requires a different schedule and more matches. FunBox’s bracket tool builds single elimination, so settle the format before using it.

Work out how many byes you need

A bye lets an entrant advance without playing a match in that round. A complete bracket uses 2, 4, 8, 16, or 32 slots. Those sizes can be halved repeatedly until one winner remains. As Challonge explains, other entrant counts need some first-round byes to reach that pattern.

Find the smallest bracket size at least as large as your entrant count, then subtract the entrants from the slots. Six teams fit into eight slots, leaving two byes. Nine teams need sixteen slots, leaving seven. This can look uneven on paper, but after the opening match a nine-team field becomes eight, ready for quarterfinals.

Do not fill an empty slot with a fake player and record a pretend victory. Label the bye as automatic advancement. The next round still needs a real opponent, and the bye has not used any playing time. The table gives a few useful checks before you print.

Choose ordered seeding or a random draw

Seeding assigns positions before play begins. If you have an agreed ranking, enter the strongest seed first and continue in order. FunBox’s ordered bracket places the top two seeds in opposite halves and gives available first-round byes to the highest seeds. The first line in your list therefore matters.

For a casual event without rankings, choose the random draw option. This shuffles entrants into seed positions, including the positions that receive byes. Show the group the list before generating, then keep the resulting draw. Repeating until a preferred matchup appears changes the process everyone thought they had agreed to.

You can also assign numbers to entrants and use the random number generator. Set the minimum to 1, maximum to the entrant count, and quantity to the same count. Enable No repeats in this batch and leave sorting off. Follow the resulting sequence when entering names, then choose Seed by entered order rather than shuffling them again.

Walk through a six-team bracket

For a worked example, label six entrants A through F and enter them in that order using ordered seeding. A and B receive the two byes. The opening matches are D against E and C against F. A will face the winner of D versus E; B will face the winner of C versus F.

Suppose D and C win those opening matches. The semifinals are A against D and B against C. Advance the two semifinal winners into the final, then record its winner as champion. The path contains two opening matches, two semifinals, and one final, for five matches altogether.

The example names and outcomes are simply a way to inspect the bracket. Your generated bracket may show different pairings after a random draw. Follow the connections already displayed, and tell players who they are waiting for. A player with a bye can still use that time to warm up.

Count matches before estimating the finish time

For n entrants, a completed single-elimination tournament needs n minus one played matches. Each match removes one entrant, and you need to remove everyone except the champion. Byes remove nobody. A third-place playoff would add a match beyond this count; withdrawals can reduce the number actually played.

Match count is not elapsed time. If six teams play five ten-minute matches one after another, the playing time totals fifty minutes before changeovers. Two available tables can run the opening matches together, then the semifinals together, before one final. That gives three ten-minute waves, plus changeovers, assuming every match fits its slot.

Open the scoreboard in a separate browser tab to keep the current match score visible without leaving your bracket. A stopwatch can measure practice matches before you set a schedule. Leave time to call the next players and settle a disputed result. A precise bracket cannot predict the length of a match by itself.

Keep one result record everyone can follow

Have one organizer record the winner after both sides agree on the result. FunBox advances the selected winner into the next round. If the wrong winner was chosen, correct that earlier match before continuing. Later choices along that player’s path are cleared so the organizer can resolve the changed matchups again.

Print the bracket before play if you want a wall copy, and mark confirmed results on both copies. Names and results stay in the current page only. Copy or print your finished bracket before refreshing or leaving. For a simple activity to put inside each match, try our drawing game house rules.