Maxine Salas 
A round-robin tournament for 12 players is a competition format in which each participant plays each other once. This results in 66 matches, because the number of games is calculated using the formula (12×11): 2 = 66. Each player plays 11 matches, which makes the system perfectly balanced and fair — there are no random eliminations, as in knockout tournaments, and the winner is determined by the results of the entire distance.
To organize such a tournament, it is important to draw up a schedule in advance. The most commonly used algorithm is the “round-robin rotation,” where one participant is fixed and the rest change places in a circle. This allows you to automatically compile a list of matches so that no one plays the same opponent twice or misses a round. An approximate schedule for 12 participants is divided into 11 rounds. In each round, 6 pairs (12 players evenly) play. One of the most well-known templates — from the PrintYourBrackets or CalculatorSoup websites — looks like this:
Round 1: 1–12, 2–11, 3–10, 4–9, 5–8, 6–7
Round 2: 1–11, 12–10, 2–9, 3–8, 4–7, 5–6
Round 3: 1–10, 11–9, 12–8, 2–7, 3–6, 4–5
Round 11: 1–2, 3–12, 4–11, 5–10, 6–9, 7–8
Players are designated by numbers, but during preparation, you can simply replace them with real names. You can find and fill out such a template in Excel, or use an online service such as LeagueLobster or Teamopolis, which allow you to enter participants, automatically build a schedule, and enter results.
After each round, points are entered into the table. The classic scoring system is 3 points for a win, 1 for a draw, and 0 for a loss. Variations are possible: for example, if it is darts, you can count the number of legs or sets. After all 11 rounds, a final table is compiled, where participants are sorted by total points. In the event of a tie, additional criteria are taken into account: the difference between wins and losses, head-to-head matches, or coefficients (for example, the Buchholz system).
Organizationally, such a tournament can be held in one day if the games are short, or spread over several evenings. An average match at a good pace can last 15–20 minutes, which means that a whole round of 6 matches will take about 2 hours. If there are two or three parallel venues, it can be done faster.
In practice, a round-robin tournament is not just a format, but a whole philosophy: it eliminates chance and emphasizes stability. In such a tournament, it is impossible to get lucky — the winner is the one who consistently performs well throughout all 11 games. This is especially important in amateur and youth leagues, in table and intellectual sports, where it is important to give everyone the opportunity to prove themselves.
Today, there is no need to draw up brackets by hand: there are dozens of free generators, ready-made templates, and even mobile apps (DartConnect, TournamentManager, etc.). Many of them allow you to generate not only a schedule, but also automatically form a table, keep score, remind you of matches, and share results on the internet.
Thus, a round-robin tournament for 12 people is the perfect combination of simplicity, fairness, and dynamics. And with modern digital tools, it becomes easy to organize and comfortable for both players and spectators. All you need is a list of participants, a little time, and a willingness to get involved in 66 truly fair matches.
