Round Robin Tournament Scheduling

Recent Posts

1
Requests / Re: Request: 24 players 4v4; 10 games
« Last post by saintsriracha on Today at 03:58:14 PM »
Ian,
Realistically, we can play 8 games in a single one-time tournament, keeping it under 2 hours. 

I found that the sequence I had posted before was made for golf not soccer, so it did not take into account the opponents team- as a result, works great to avoid repeating any two pairings more than twice, but it does repeat oponents (same two oponennt players ended up facing three times sometimes). 

So ideally I'm looking for:
* 24 players
* 4v4 games
* Three fields 
* 8 rounds
* Any two players are not paired together or face against each other more than twice 
* It's OK to have pairings that do not happen (I imagine this is unavoidable). 

In this Dutch style tournament, each team point is tracked at the indivdual level, so there is one player that wins most points at the end (penalty shootouts if there are players tied for most points). This has three concurrent 4v4 games, looking like this: 




Once I receive the sequences from you, I will create a Google Spreadsheet that will automatically tally indivdiual points and provides a final player ranking at the end of the tournament. I will be organizing these tournaments on a monthly basis (several of us doing this at the club), so whatever you provide will be used A LOT. 

THANAK YOU!!!

PS- I already created exactly this tracking spreadsheet for the 16 player tournament that you had posted here on this site in response to an earlier query, so you've already helped!

2
Requests / Re: Request: 24 players 4v4; 10 games
« Last post by Ian Wakeling on May 16, 2024, 03:34:27 AM »
There is actually an error in the 24 player schedule that you copied - for Day 6 the first 'E' should be a 'G'.  However, this schedule is for foursomes over 7 days, each player plays exactly once with 21 different players, and has exactly two players who they never meet - so for example player A meets everyone except I and Q.  The problem is that the schedule does not work well if you try and divide each day into 3 games of 4 versus 4.  For example if you played column 1 versus column 2, then A would always oppose I, and never oppose Q.  No matter how you form the 4v4 games, you will always have poor balance for opponents.

I don't know of any software that will help you here, but perhaps I can help with a schedule.  The schedule above is for 7 rounds when you were asking for a 10 round schedule, so I presume there is some flexibility in the number of rounds - is that right?
3
Requests / Re: Request: 24 players 4v4; 10 games
« Last post by saintsriracha on May 16, 2024, 01:45:14 AM »
Perhaps I found the answer - i eventually got to this page following many breadcrumbs:
https://web.archive.org/web/20120503232317/http://www.maa.org/editorial/mathgames/mathgames_08_14_07.html#g24o4d7

This appears to be the answer I was looking for (do please let me know if it appears correct):
24 golfers can play in foursomes for 7 days.
Quote
Day1 ABKU IJSE QRCM DGFX HLNO PTVW
Day2 ACLV IKTF QSDN EHGR BMOP JUWX
Day3 ADMW ILUG QTEO FBHS CJNP KRVX
Day4 AENX IMVH QUFP GCBT DJKO LRSW
Day5 AFOR INWB QVGJ HDCU EKLP MSTX
Day6 AEPS IOXC QWHK BEDV FJLM NRTU
Day7 AHJT IPRD QXBL CFEW GKMN OSUV

4
Requests / Request: 24 players 4v4; 10 games
« Last post by saintsriracha on May 16, 2024, 01:17:27 AM »
First of all, huge thanks to the contributors and moderators of this forum. It's super helpful. There is not another forum like this on the internet. 

I found this awesome response for a 16 player, 4v4 10 game tournament in two fields (in ABCD EFGH ...) 
https://www.devenezia.com/round-robin/forum/?topic=774 

Would it be possible to have one for 24 players, 4v4, 10 games, 3 fields? 
Only additional requirement is not to have any one pair repeat more than twice, everyone paired with most others, and facing most everyone else. 
THANKS!

PS - is there a widget that I could install in Excell or formula to import in Google Sheets where we input # of players (maintaining 4v4 and 10 games)? 
5
Requests / Newbe
« Last post by Morti on May 15, 2024, 05:07:54 PM »
 I would like some assistance on creating a schedule of play.  We have 18 teams and would like to create a schedule where every team plays each other once before we start the rotation over in 6 weeks.  We don't need to end the season with every team playing each other an equal number of times, but as close as possible.  How do I go about creating a schedule?
 We have six pits to use.
I forgot to mention that it is important that the teams rotate on the pits that they use for each game.  What I mean is that one team can't throw on the same court all the time.  Each court is a bit different from the next due to lighting, neighboring courts, wind, rain, etc. so we want to level the playing field as much as possible.
6
Requests / Re: Help! 11 teams and 6 events.
« Last post by Ian Wakeling on May 11, 2024, 10:55:25 AM »
Reduce to 5 events, then use this schedule but remove 'match 1'. What remains is a schedule for 11 teams playing 11 rounds.  Call the 5 columns events 1 to 5, and you will have each team playing each event twice.
7
Requests / Help! 11 teams and 6 events.
« Last post by JuniperJonesJr on May 10, 2024, 03:20:04 PM »
We had a team back out. I need help with a schedule for 11 teams and 6 events. Whatever works!
8
Requests / Algoritm search: X rounds, 2 against 2, changing partners
« Last post by Skippy1957 on May 07, 2024, 01:31:16 PM »
I need an algoritm for a tournament with the following requirements:
- X rounds (2, 3, 4)
- X participants
- playing team with 2 against  team with 2
- changing partners every time
- never play with or against one another
- if not divide by 4, rest is added to the first 1 to 3 teams
Anyone a solution to this?
9
Requests / Re: 7 Team Round Robin
« Last post by Chumpson on May 03, 2024, 01:58:03 PM »
Never mind, found it on some other posts and using Richard's cyclic method.  Thanks anyway!
10
Requests / 7 Team Round Robin
« Last post by Chumpson on May 03, 2024, 01:10:40 PM »
Good morning...Stumbled across this website today and hoping for some help.  I tried downloading the Excel file, but can't figure out how to make use of it, so I'm asking here for help.

Have a 7 team round robin tournament, on three courts where each team needs to play on each court at least twice. It's a given we want 1 bye per team and 1 match against every other team.  Thanks!