Tool to automatically generate a calendar or matches for an all-play-all championship/tournament (round-robin) where every opponent meets all others with this generator.
Round-robin Tournament Generator - dCode
Tag(s) : Algorithm, Combinatorics
dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!
Round-robin Tournament Generator
All-Play-All Tourmanent Generator
Knockout Tournament Generator
Americano (Doubles) Tournament Generator
Answers to Questions (FAQ)
What is a round-robin tournament? (Definition)
A round-robin tournament (all play all) is the name given to a type of championship/league where the participants of all play against each other once (single version). There is also the double version, where the players/teams meet exactly twice (principle of back and forth matches). Usually, each match earns points, and at the end of the tournament, the player or team with the most points wins the championship.
The round-robin tournament is opposed to the knockout tournament, the first is made up of a single hen, the second looks like a tree.
How to generate the rounds list for a championship?
Enter the list of participants (teams, players, people, competitors etc.) in the table, one per cell. Then click the button to start a random round-robin tournament generation.
Each item will contain all the others. All games that can be performed simultaneously (in parallel) will be grouped.
Example: With 4 teams Team1,Team2,Team3,Team4, a possible draw is:
Round 1: Team1 vs Team2 and Team3 vs Team4
Round 2: Team1 vs Team4 and Team2 vs Team3
Round 3: Team1 vs Team3 and Team4 vs Team2
If the number of participants N is even, then there will be N-1 championship days in the calendar.
The home team, which receives, is listed first, the away team second. Home - Visitors
How to manage an odd number of participants?
If the number of participants is odd, every round a participant has no opponent. It will be exempt of game (also called bye).
How to generate the rounds list for two legged ties?
Some championships, for fairness, organize round-trip matches, with a home game and an away game. The generator can take into account these specificities in order to list games respecting 50% of home and 50% of away and / or to include two-legged tie.
Why use a tournament generator?
A championship generator is used in various fields such as sports, gaming, academic competitions to organize fair tournaments.
Tournament organizers, sports clubs, schools, and any entity wishing to organize structured competitions can use this tool.
Source code
dCode retains ownership of the "Round-robin Tournament Generator" source code. Any algorithm for the "Round-robin Tournament Generator" algorithm, applet or snippet or script (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or any "Round-robin Tournament Generator" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) or any database download or API access for "Round-robin Tournament Generator" or any other element are not public (except explicit open source licence). Same with the download for offline use on PC, mobile, tablet, iPhone or Android app.
Reminder: dCode is an educational and teaching resource, accessible online for free and for everyone.
Cite dCode
The content of the page "Round-robin Tournament Generator" and its results may be freely copied and reused, including for commercial purposes, provided that dCode.fr is cited as the source (Creative Commons CC-BY free distribution license).
Exporting the results is free and can be done simply by clicking on the export icons ⤓ (.csv or .txt format) or ⧉ (copy and paste).
To cite dCode.fr on another website, use the link:
In a scientific article or book, the recommended bibliographic citation is: Round-robin Tournament Generator on dCode.fr [online website], retrieved on 2025-07-08,
- All-Play-All Tourmanent Generator
- Knockout Tournament Generator
- Americano (Doubles) Tournament Generator
- What is a round-robin tournament? (Definition)
- How to generate the rounds list for a championship?
- How to manage an odd number of participants?
- How to generate the rounds list for two legged ties?
- Why use a tournament generator?
