Recent Posts

31

Requests / Partitioned Balanced Tournament Design (PBTD) for 8 teams with more venues

« Last post by Innesw20 on February 20, 2025, 05:58:32 AM »

In the game of lawn bowls, if there are only 8 teams in a competition there would frequently be more rinks available (the standard green has eight) than are required to play each round (4).

The mathematicians have shown that there does not exist a PBTD for 8 teams and 4 venues.

I was wondering whether a PBTB-equivalent for 8 teams could be constructed where the number of venues is 5 instead of 4? If not, would 6 venues allow it? Or is it just not mathematically possible? This is essentially easing the restriction on the number of venues that applies in the standard definition of PBTDs.

32

Requests / Re: 16 Players Foursomes League

« Last post by Ian Wakeling on February 20, 2025, 03:03:37 AM »

Please see reply #1 that I wrote here.  It will give you both 10 and 15 rounds and more if you want.  Note that the 16 players are numbered zero to 15.

33

Requests / 16 Players Foursomes League

« Last post by Sifo-Dyas on February 19, 2025, 09:30:02 AM »

Hallo, I need Help for scheduling 16 Players in 10 (maybe 15) rounds of Foursomes.

Every Player should meet every other Player twice (three Times) but no three or four Players should meet more then ones.

Thank You very much 

34

Requests / Re: Schedule please 2 teams of 8 players

« Last post by bartdev on February 17, 2025, 06:52:47 AM »

Thanks Ian, That worked a treat. I did look at that schedule but couldn't get my head around the changes required.
Many thanks, chatgpt - 0 metaAl - 0   Ian  Winner
Appreciate your time and effort, Regards, Bart

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Requests / Re: Schedule please 2 teams of 8 players

« Last post by Ian Wakeling on February 17, 2025, 03:02:23 AM »

If you take the schedule in reply#1 here, ignore the extra round, then take each game of the form (H W vs H W) and rearrange the four players to give (H H vs W W), then if H and W are the two teams, then I believe the schedule will meet the requirements that you have set.

36

Requests / Schedule please 2 teams of 8 players

« Last post by bartdev on February 16, 2025, 09:21:22 PM »

Hi,
Have searched with little luck so posting a request.
2 teams of 8 players in a doubles competition Team A against Team B
Criteria - 4 courts, 7 rounds, Team A playing with a different partner each round
against different opposition in Team B also playing with a different partner each round.
Chatgpt and MetaAI both failed to produce a schedule meeting all the criteria.

Thanks in advance, Cheers, Bart

37

Requests / Re: Yard Games Tournament

« Last post by YardGamesCo on February 14, 2025, 11:47:19 AM »

What would be the best way to fill in the remaining three rounds with as few repeats as possible?

Any suggestions?

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Requests / Re: Yard Games Tournament

« Last post by YardGamesCo on February 14, 2025, 08:10:47 AM »

Thank you Ian!

For someone who is both a math lover and event nerd, this forum and what do are just incredible.

39

Requests / Re: Yard Games Tournament

« Last post by Ian Wakeling on February 14, 2025, 04:12:21 AM »

There is an old Excel file called foursome-tournaments-v4 in this thread that you can download if you are logged in.  This will give you a solution for the related problem of 20 teams in 5 rounds with 5 games, but unfortunately I don't think there is a solution for 24 teams, the most you can manage is the 3 rounds of play shown.  Note that these schedules involve dividing the teams into 4 sub-groups, but you don't have to tell the players about this.

40

Requests / Yard Games Tournament

« Last post by YardGamesCo on February 12, 2025, 11:52:34 AM »

Hey,

Not sure if this one is possible, my inclination tells me no, but here goes.

I have 6 different games being played. I have 24 teams.

I would like to break the teams into groups of 4 and have a round robin at each game, but id like the grouping to be different for each game.
So each team would play a total of 18 games(a 3 game round robin of each) by the end.

Is it possible to do this with out a team playing a game more than once or repeating opponents?