Swiss System

The Swiss system is a non-elimination format where every player plays a fixed number of rounds. After each round, players are re-paired so that those with similar records face each other: winners play winners, losers play losers. No rematches are allowed. The format produces accurate rankings much faster than a round robin while keeping everyone playing throughout. Originally developed for chess in 1895, it's gaining traction in padel, tennis, and other racquet sports for medium-to-large fields.

• The number of rounds is fixed in advance (typically log2(N), rounded up - so 5 rounds for 32 players).
• Round 1 pairings are random or seeded.
• After each round, players are grouped by their current win-loss record and paired within those groups. A 2-0 player faces another 2-0 player; a 1-1 player faces another 1-1 player.
• No player faces the same opponent twice.
• After all rounds, final standings are determined by total wins. Ties are broken using the Buchholz system: the sum of your opponents' wins. Beating strong opponents counts for more.
• Everyone plays the same number of matches.

1. Determine the number of rounds based on your player count. 4 rounds for 8-16 players, 5 rounds for 17-32 players.
2. Use tournament software for pairings. Manual Swiss pairing is complex and error-prone.
3. Run Round 1 with seeded or random pairings.
4. After each round, enter results into the software and generate the next round's pairings.
5. Allow time between rounds for the pairings to be calculated and communicated (5-10 minutes).
6. Display standings after each round so players can track their progress.
7. After the final round, calculate Buchholz tiebreakers and publish final standings.

Larger events (12-64 players) where a full round robin is impractical but you want fairness and maximum participation. Excellent for one-day club tournaments.

• Requires software or an experienced organiser - the pairing algorithm is non-trivial.
• Players may not understand why they've been paired with a particular opponent. Clear communication about how the system works is important.
• Can be combined with a knockout final for the top 2 or 4 players.