Format guide
How round robin tournaments work
Round robin is an all-play-all format: every player or team meets every other participant once. Nobody is removed after a loss. The winner comes from the final standings, making the format useful when repeated performance matters more than surviving a knockout draw.
Elimly generates every pairing, organizes matches into rounds, calculates table points and score statistics, and updates the standings whenever a result is saved.
- Matches
- n(n − 1) ÷ 2
- Even field rounds
- n − 1
- Odd field rounds
- n
- Field size
- 2–64 players
Calculate matches, rounds and BYEs
For n participants, a single round robin contains n(n − 1) ÷ 2 matches. Four players create 6 matches, 8 create 28, and 16 create 120. Each participant plays n − 1 times. Even fields need n − 1 rounds when matches can run in parallel; odd fields need n rounds because one participant has a BYE in each round.
This growth is the main scheduling constraint. A round robin gives excellent coverage for small groups but quickly becomes impractical for large fields. Use the match count shown beside the player slider to compare the workload before creating the tournament.
Scoring and final standings
Choose whether draws are allowed and set the table points for a win, draw and loss. The familiar 3–1–0 system is a good default for many sports, while a 1–0 system works for games that cannot finish tied. Match scores also produce points-for, points-against and score difference.
Participants are ranked first by table points. When points are tied, choose either higher score difference or higher total score as the next rule. The standings update after every saved result, so players can follow the current order through the shared tournament link.
When round robin is the right format
Use round robin when fairness, comparable schedules and several matches per participant matter. It is a strong fit for small club leagues, chess groups, table-tennis nights and group stages where everyone should face the same opponents.
For a large entry list or a fixed number of rounds, Swiss creates fewer matches while pairing players by current performance. If the event needs one dramatic final winner, send group qualifiers into the group stage + playoff format or choose a knockout bracket from the start.
Organizer checklist
Confirm the table-point system and tie-break before the first match, especially when score margins matter. Estimate court capacity by round, explain rotating BYEs for odd fields, and enter full scores consistently. Before announcing the winner, verify that every scheduled match is complete and that no result was recorded against the wrong pairing. If several games run at once, assign a clear score-reporting process so the table stays current. Post the shared standings link where every participant can check corrections before the final announcement.
Frequently asked questions
How many matches are in a round robin tournament?
Use n(n − 1) ÷ 2. For example, 6 players create 15 matches, 8 create 28, and 10 create 45.
How are tied players ranked?
Table points are compared first. You can then use score difference or total score as the configured tie-break.
What happens with an odd number of players?
One player receives a rotating BYE in each round. Everyone still plays every other participant once.
Are draws optional?
Yes. Disable draws for games that require a winner, or keep them enabled and choose the points awarded for a tied match.
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