Skip the spreadsheets and manual setups – our tournament bracket generator builds a 21 team round robin bracket in seconds. Enter your team names, and the tool instantly generates all matchups and rounds for your league. It’s ideal for sports, esports, school tournaments, or community events.
Looking for other formats or team sizes? Try our bracket maker — it supports every number of teams and tournament styles.
How does 21 team round robin work?
In a round robin tournament, each of the 21 teams plays against every other team once. That means each team competes in 20 games, resulting in a total of 210 matches across the tournament. It’s one of the most balanced formats, ensuring every team gets an equal chance to compete.
Byes are necessary for 21 teams since the number is odd. The 21-team round robin generator automatically designs a fair schedule, ensuring byes are distributed evenly and no team plays consecutive home or away games unless you choose to set it up that way.
How many games are in a 21 team round robin tournament?
There are 210 games spread across 20 rounds. Each round features 10 matches, allowing all teams to play at the same time. Since every team competes in 20 games, this format is perfect for extended seasons that emphasize consistency and stamina.
Learn more about the structure on our round robin overview page.
| Round 1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 | R11 | R12 | R13 | R14 | R15 | R16 | R17 | R18 | R19 | R20 | R21 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BYE: 1 | BYE: 3 | BYE: 5 | BYE: 7 | BYE: 9 | BYE: 11 | BYE: 13 | BYE: 15 | BYE: 17 | BYE: 19 | BYE: 21 | BYE: 2 | BYE: 4 | BYE: 6 | BYE: 8 | BYE: 10 | BYE: 12 | BYE: 14 | BYE: 16 | BYE: 18 | BYE: 20 |
| 2–21 | 1–2 | 1–3 | 1–4 | 1–5 | 1–6 | 1–7 | 1–8 | 1–9 | 1–10 | 1–11 | 1–12 | 1–13 | 1–14 | 1–15 | 1–16 | 1–17 | 1–18 | 1–19 | 1–20 | 1–21 |
| 3–20 | 4–21 | 2–4 | 3–5 | 4–6 | 5–7 | 6–8 | 7–9 | 8–10 | 9–11 | 10–12 | 11–13 | 12–14 | 13–15 | 14–16 | 15–17 | 16–18 | 17–19 | 18–20 | 19–21 | 2–19 |
| 4–19 | 5–20 | 6–21 | 2–6 | 3–7 | 4–8 | 5–9 | 6–10 | 7–11 | 8–12 | 9–13 | 10–14 | 11–15 | 12–16 | 13–17 | 14–18 | 15–19 | 16–20 | 17–21 | 2–17 | 3–18 |
| 5–18 | 6–19 | 7–20 | 8–21 | 2–8 | 3–9 | 4–10 | 5–11 | 6–12 | 7–13 | 8–14 | 9–15 | 10–16 | 11–17 | 12–18 | 13–19 | 14–20 | 15–21 | 2–15 | 3–16 | 4–17 |
| 6–17 | 7–18 | 8–19 | 9–20 | 10–21 | 2–10 | 3–11 | 4–12 | 5–13 | 6–14 | 7–15 | 8–16 | 9–17 | 10–18 | 11–19 | 12–20 | 13–21 | 2–13 | 3–14 | 4–15 | 5–16 |
| 7–16 | 8–17 | 9–18 | 10–19 | 11–20 | 12–21 | 2–12 | 3–13 | 4–14 | 5–15 | 6–16 | 7–17 | 8–18 | 9–19 | 10–20 | 11–21 | 2–11 | 3–12 | 4–13 | 5–14 | 6–15 |
| 8–15 | 9–16 | 10–17 | 11–18 | 12–19 | 13–20 | 14–21 | 2–14 | 3–15 | 4–16 | 5–17 | 6–18 | 7–19 | 8–20 | 9–21 | 2–9 | 3–10 | 4–11 | 5–12 | 6–13 | 7–14 |
| 9–14 | 10–15 | 11–16 | 12–17 | 13–18 | 14–19 | 15–20 | 16–21 | 2–16 | 3–17 | 4–18 | 5–19 | 6–20 | 7–21 | 2–7 | 3–8 | 4–9 | 5–10 | 6–11 | 7–12 | 8–13 |
| 10–13 | 11–14 | 12–15 | 13–16 | 14–17 | 15–18 | 16–19 | 17–20 | 18–21 | 2–18 | 3–19 | 4–20 | 5–21 | 2–5 | 3–6 | 4–7 | 5–8 | 6–9 | 7–10 | 8–11 | 9–12 |
| 11–12 | 12–13 | 13–14 | 14–15 | 15–16 | 16–17 | 17–18 | 18–19 | 19–20 | 20–21 | 2–20 | 3–21 | 2–3 | 3–4 | 4–5 | 5–6 | 6–7 | 7–8 | 8–9 | 9–10 | 10–11 |
How long does it take?
The total duration depends on how long each match lasts and how many fields or tables are available. For instance, if each game takes about 20 minutes and you have three courts running simultaneously, your 21team round robin tournament can be finished within two to three days of play.
Because the schedule is automated, you can pause and resume at any time without losing track of scores or standings.
21 team round robin tournament compared to other formats
This comparison highlights why the 21 team round robin format is ideal for leagues that prioritize fairness and accuracy rather than speed.
| Format | Total games | Games per team | Rounds | Fairness | Notes |
|---|---|---|---|---|---|
| Round Robin | 210 | 20 | 21 | Everyone plays everyone | Best for leagues |
| Single Elimination | 20 | 1–4 | 4 | Harsh cutoff | Best for quick events |
| Double Elimination | 41 | 2–8 | ~8 | More forgiving | Popular in esports |
| Double Elimination with Consolation | ~30 | min 2 | ~7 (4+3) | Fairer, every team plays twice | Youth sports |
| Swiss System | 40 | 4 | 4 | Balanced, flexible | Chess, card games |
How to create a 21 team round robin tournament schedule?
Use our 21-team round robin generator to automatically create your tournament schedule. Just enter your teams, customize the settings (such as home and away preferences), and the system will instantly produce a complete 21 team league schedule for you.
You can easily print or export it as a PDF or CSV file to share with all participants. Whether you’re organizing 21 players, teams, or an entire sports league, the generator takes care of everything for you.
Start organizing your tournament today with our tournament bracket generator and see why it’s the most trusted tool for creating balanced schedules online.
Printable Bracket
