Round robin schedule
18 team round robin schedule
Who plays whom in every round. Print it as it is.
- 17rounds
- 153games
- 9per round
Set the start date in the settings and every round gets its date.
- Someone plays 1 game more at home than away. With an even number of teams and a single round robin that is unavoidable (there is an odd number of rounds), not a fault in the draw. A double round robin evens it out by itself.
The schedule
In every game, the first team is at home.
Round 1
Round 2
Round 3
Round 4
Round 5
Round 6
Round 7
Round 8
Round 9
Round 10
Round 11
Round 12
Round 13
Round 14
Round 15
Round 16
Round 17
A printed schedule is right until the first match is played. After that it is someone writing 6-3 in the margin, and a photo of that sheet going round the group chat. This page has an address of its own: give out the link instead and the results go in from a phone, so what sits on your club's website is never the schedule from week one. If it is one afternoon on one court, print it and forget about us.
How this schedule is built
Everyone against everyone, exactly once
With an even number everyone plays in every round and nobody sits out.
Read the explanation
By the circle method: one team stays fixed and the rest rotate around it. On each turn every team meets a different one, and in 17 rounds everyone has met everyone exactly once. It is not an approximation: it is the exact solution, so there is nothing to optimise and no draw that can come out wrong.
The arithmetic of an 18-team league follows on its own and does not depend on the draw. Every pair of teams meets once, so that is 153 games for a single round robin (18 × 17 ÷ 2), which is 17 games each. They run over 17 rounds of 9 games.
Each team takes home and away in turns, without anyone having to keep count.
When it is played
No dates yet
With no start date the rounds come out without dates, which is also fine: some clubs hand out the schedule and let each pair arrange their own game.
Questions
How many games in an 18 team round robin?
153 games. Every pair of teams meets once, which is 18 × 17 ÷ 2. That is 17 games each, spread over 17 rounds of 9 games.
How many rounds does an 18 team league have?
17 rounds, which is 18 − 1. With an even number of teams everybody plays in every round and nobody sits out.
How many courts or pitches do you need?
9 to play a whole round at once. With fewer, the round splits into shifts: on a single court it is 9 shifts back to back.
Can I change the draw of a league?
Yes. There is a draw number in the settings: change it and you get different pairings. The same link always gives the same schedule, so you can hand it round without it reshuffling.
Can the league be played home and away?
Yes. The rounds double and every pair meets twice, once at each ground. The second half mirrors the first, which is what football does and what people expect.
Do I need an account to get the schedule?
No. The full schedule comes out without an account and can be printed. An account is only needed for teams to sign themselves up and for the table to update itself with the results.
Settings
Home and away, dates, draw and names
The draw number changes the pairings: if you do not like who somebody starts against, try another. The address carries everything inside and can be shared.
Other sizes
More teams, or fewer?
- 4 teams3 rounds
- 5 teams5 rounds · 1 sits out
- 6 teams5 rounds
- 7 teams7 rounds · 1 sits out
- 8 teams7 rounds
- 9 teams9 rounds · 1 sits out
- 10 teams9 rounds
- 12 teams11 rounds
- 14 teams13 rounds
- 16 teams15 rounds
- 18 teams17 rounds
- 20 teams19 rounds
Were you after an americano? That is a different format: pairs that change every round and individual standings.
Running it on Peldia, and the table keeps itself
Each team signs itself up from a link without registering, results go in from a phone and the table updates itself with the right tie-breakers.
And it does not end when the league does: every entrant keeps their record and their level, and the next season starts with all of it already there. If you run a club or an academy, you see who is improving, who has stalled and who has not turned up in weeks.
Creating your own needs an account, and those screens are in English too.