Round Robin Tournament Scheduling

Recent Posts

31
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?


32
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.
33
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.
34
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?
35
You schedule looks pretty good to me.  I have come up with the following where the referees are in square brackets:

(B C)  (G F)  [D A]
(E H)  (D A)  [B C]
(C J)  (B I)  [E H]
(G D)  (F A)  [I J]
(I E)  (H J)  [G F]
(G B)  (F C)  [H A]
(H A)  (E D)  [G I]
(J F)  (G I)  [E D]
(H C)  (E B)  [J F]
(D I)  (A J)  [B C]
(E F)  (G H)  [I J]
(A B)  (C D)  [E F]
(I J)        [C]
   
   
(C G)  (A E)  [B D]
(B D)  (F H)  [A G]
(I A)  (J E)  [C H]
(B H)  (D F)  [G J]
(C I)  (J G)  [A E]

I am not sure what criteria you will used to evaluate how good the schedule is, so let me know what you think.
36
We are hosting a volleyball tourney where we guarantee 8 matches.  We have 10 team pools and want to give 7 pool play matches to seed teams - then move all teams to a 10 team playoff bracket based on pool seeding (I have all tie break procedures laid out).  This is a youth tournament played on 2 courts over the course of 2 days.  We need a work team on each of the pool play matches so will have 6 teams playing or working at each round.  Preference is to give as much equal rest and work / play time as possible. 

We have 80 teams across 6 divisions using 16 courts so this is a fun one.  Anyone have a program or work anything like this n the past.  I have my schedules from last couple of years but hoping someone has another view?  If no other options - any suggesting that can improve the below?

Example:



37
Requests / Re: 13 team random mixed doubles schedule - 5 games each
« Last post by Ian Wakeling on January 22, 2025, 03:50:35 AM »
Is reply #9 here, from a conversation we had about three years ago, something close to what you are looking for?  If not, can you specify more about the format of play - how many courts, and how many rounds?
38
Requests / 13 team random mixed doubles schedule - 5 games each
« Last post by bobmasi on January 17, 2025, 04:15:31 PM »
Hello Ian,

I am looking for a 13 mixed doubles teams schedule where they play 5 games each.
Each player has a different partner each game and there are no repeats of opponents they play.

Can you assist.  You did this before for me, but it was for 12 teams.  Whatever you can do that comes the closest would be great.

Many Thanks in Advance
Bob Masi
,
39
Requests / Re: Court Balanced Round Robin - Home of Ian Wakeling's Excel workbook
« Last post by klima on January 17, 2025, 10:15:13 AM »
Hi, and thanks for your hard work, I use your excel program every year for generate league of darts championship in Italy region (Friuli).
I know that if I have clubs that share venue, I edit names in list because 1 and 2, 3 and 4 (and so on) never share same home... but if I like to play the first match in every shared home, there's a specific number of random that have first match with 1 vs 2, 3 vs 4, and so on?

Thanks in advance

Alen
40
Requests / Re: 20 players. Group A and B
« Last post by blascogo on January 09, 2025, 05:23:50 AM »
Thanks a lot for your help.
I have been working in the unfairness score following what it is proposed here: Tournament Designs: Individual-Pairs
I have found a good balance, I think, but not sure because the number of possible permutations is huge.
Thanks again!