How the Swiss system works
The Swiss system has one rule that makes it different from a knockout bracket: a loss doesn't send you home. Everyone plays every round. You set a number of rounds up front, run them all, and the standings at the end decide the winner.
Round one pairs players up (often by seed or at random). After that, every round pairs people by record. Winners play winners, losers play losers, and folks in the middle play each other. So if you're 2-0 you'll face another 2-0 player, not someone who lost both games. Each round the matchups get sharper, and the people who keep winning naturally float to the top.
Round count is usually ceil(log2 of the number of players) the same as a single-elimination bracket of the same size. That's enough rounds to reliably sort the field by skill: 8 players want about 3 rounds, 16 players about 4, 32 players about 5.
- Nobody is eliminated everyone plays all rounds.
- Each round pairs similar records (winners vs winners).
- You set the number of rounds before you start.
- Most wins after the final round is the champion.
- No player faces the same opponent twice.
Buchholz: breaking ties the fair way
Because nobody is eliminated, lots of players finish on the same record. Two people can both go 4-1. So you need a tiebreaker, and the most common one is Buchholz.
Buchholz is simple: add up the final scores of everyone you played. The idea is that if your opponents did well, you had a tougher road, so you should rank ahead of someone who put up the same record against weaker opposition.
Tiny example. You finish 4-1. Your five opponents end the event with 3, 2, 4, 4, and 3 wins. Your Buchholz is 3 + 2 + 4 + 4 + 3 = 16. Another 4-1 player whose opponents finished with fewer total wins has a lower Buchholz, so you place above them. Same record, harder schedule, higher finish.
- Buchholz = the sum of your opponents' final scores.
- Higher Buchholz means you beat a tougher schedule.
- It only matters between players tied on wins.
- Standard way to settle equal records in Swiss events.
Swiss vs round robin vs knockout
Round robin has everyone play everyone, which is the fairest possible result, but the games pile up fast (N times N-1, all over 2 for example, 16 players is 120 games). It's great for small pools, brutal for big fields.
A knockout bracket (single or double elimination) is fast and dramatic, but a single elimination sends half the field home after one game and never gives them another match. Bad luck in round one ends your day.
Swiss sits in between. Everyone gets the same number of games, the schedule stays short, and the top players still surface, all without playing the entire field. That's why it's the go-to for large one-day events where a full round robin is too long and a pure bracket feels too harsh.
EZ Bracket runs Swiss with automatic record-based pairings each round and Buchholz tiebreaks built in. Pick your players and your rounds, tap to record results, and the standings update live. It's free, works offline once it loads, and saves to your device no account, no email, no tracking.
- Round robin: fairest, but games balloon with field size.
- Knockout: fast, but one loss ends your tournament.
- Swiss: equal games for all, short schedule, top players still rise.
- Use Swiss for big fields where round robin runs too long.