Recent Posts

21

Requests / Re: Changing Triples Round Robin - 11 Players, 1 Court

« Last post by Ian Wakeling on April 01, 2024, 03:29:59 AM »

Hi Brian,

The following schedule should work.  Each pair of players meets exactly 3 times, either once as partners and twice as opponents, or twice as partners and once as opponents.

  ( 1  7 10) v ( 5  6  9)
  ( 2  8 11) v ( 6  7 10)
  ( 3  9  1) v ( 7  8 11)
  ( 4 10  2) v ( 8  9  1)
  ( 5 11  3) v ( 9 10  2)
  ( 6  1  4) v (10 11  3)
  ( 7  2  5) v (11  1  4)
  ( 8  3  6) v ( 1  2  5)
  ( 9  4  7) v ( 2  3  6)
  (10  5  8) v ( 3  4  7)
  (11  6  9) v ( 4  5  8)

Hope that helps,

Ian

22

Requests / Re: 12-Team Round Robin, First and Last Weeks Fixed

« Last post by hofa29 on March 28, 2024, 08:55:12 PM »

THANK YOU! 

23

Requests / Re: 12-Team Round Robin, First and Last Weeks Fixed

« Last post by Ian Wakeling on March 28, 2024, 04:42:12 AM »

Here is a solution that should work for you where the 11 weeks are the rows.  Additionally the columns are balanced having each team once or twice.  Hope that helps.

( 1  4) ( 2 11) ( 3 12) ( 5  8) ( 6 10) ( 7  9)
( 2 12) ( 6  8) ( 3  5) ( 9 11) ( 4  7) ( 1 10)
( 8 10) ( 9 12) ( 2  6) ( 4  5) ( 7 11) ( 1  3)
( 2  8) ( 3  9) ( 1 11) ( 4 10) ( 5 12) ( 6  7)
(10 11) ( 5  7) ( 4 12) ( 1  6) ( 2  3) ( 8  9)
( 3 11) ( 6 12) ( 4  8) ( 7 10) ( 1  9) ( 2  5)
( 5  9) ( 3 10) ( 2  7) ( 1 12) ( 8 11) ( 4  6)
( 1  7) ( 4 11) ( 5 10) ( 2  9) ( 3  6) ( 8 12)
( 7 12) ( 1  5) ( 6 11) ( 3  8) ( 4  9) ( 2 10)
( 6  9) ( 2  4) ( 1  8) ( 3  7) (10 12) ( 5 11)
( 5  6) ( 7  8) ( 9 10) (11 12) ( 1  2) ( 3  4)

24

Requests / 12-Team Round Robin, First and Last Weeks Fixed

« Last post by hofa29 on March 27, 2024, 05:16:46 PM »

Hi there, trying to implement a 12-team round robin where the first and last week have fixed match pairings. The others can be random for all I care. Have poked around for an algo solution and come up empty. Also tried brute-forcing it but I'm losing my mind. If there's anyone who can do this elegantly/efficiently I'd appreciate. 

Conditions: 
Week 1
1-4
2-11
3-12
5-8
6-10
7-9


Week 11
1-2
3-4
5-6
7-8
9-10
11-12

25

Requests / Changing Triples Round Robin - 11 Players, 1 Court

« Last post by brianenright3 on March 26, 2024, 11:33:54 AM »

Hoping for help on a switching triples round robin. 11 players, ideally partner with each other player twice & against each player three times. Ian, if you see this, it would be very similar to the 12 team version you made here:

https://www.devenezia.com/round-robin/forum/index.php?topic=1117.msg2887

Thanks in advance for any help!!

-Brian

26

Requests / Re: Round Robin help needed

« Last post by Ian Wakeling on March 25, 2024, 02:54:23 PM »

Hi Ian,

Have a look at the attached schedule in the Excel file.  I have highlighted the 'same-club' matches with the purple background.  Note that Club 6 only hosts once - there is no way of avoiding this unless either Club 7 or Club 8 never host.

Hope that helps,

Ian

27

Requests / Re: Round Robin help needed

« Last post by Ian James on March 24, 2024, 02:31:04 PM »

Hi again Ian

Our situation has changed again.

Your help with a revised draw would be greatly appreciated.

New scenario;

8 clubs supply teams.
4 clubs have 3 teams, 2 clubs have 2 teams and 2 clubs have 1 team.
All  clubs are used as venues equivalent to the number of teams entered.
As previously, I have one condition that none of the roundrobin generating websites allow me to manage.

I want to ensure that when 2 teams from the same club play one another, the match is played on their home course.


Regards
Ian

28

Requests / 10 player whist, 3 x 3 + 2 x 2 volleyball

« Last post by Wakerunner on March 23, 2024, 11:04:15 AM »

I have seen there is no good way to do a good 10 players whist for volleyball with 2 player teams, so I was wondering if a schedule could be made for 10 players, one court would be playing 3 vs 3, the other court 2 vs 2? This would need to be whist style, where you play with different partners ever round, as evenly as possible, so ever players plays the same number of 3's games and 2's games.

Thanks for your help!

29

Requests / Re: 10 golfers (3-ball, 3-ball & 4-ball) 4 rounds

« Last post by BTM on March 22, 2024, 07:59:35 PM »

As ever, many thanks Ian. 

BTM

30

Requests / Re: 10 golfers (3-ball, 3-ball & 4-ball) 4 rounds

« Last post by Ian Wakeling on March 22, 2024, 04:42:00 AM »

There is indeed nothing tidy here.  There is a perfect solution for 9 players which you can find here.  If you truly want everyone to play each other, the only way of achieving this is for two of the players in the foursome to be fixed.  So take the schedule I linked to, and to the four threesomes that contain player I add player J.