Round Robin Tournament Scheduling

Recent Posts

1
Requests / Re: 28 player mixed doubles no repeat round robin
« Last post by bobmasi on Today at 03:06:20 PM »
Many Thanks Ian.  If its not too much trouble can you also provide the same thing but for 24 total
players (12M and 12W).  Not sure on final count so need a backup option.
2
Requests / Re: 28 player mixed doubles no repeat round robin
« Last post by Ian Wakeling on Today at 11:59:52 AM »
I think the following will give each player 5 games, and at the same time all partners and opponents should be different people:


(M1 F1 v  M8  F8)  (M7 F7 v M14 F14)  (M6 F6 v M13 F13)
(M5 F5 v M12 F12)  (M4 F4 v M11 F11)  (M3 F3 v M10 F10)
(M7 F5 v M13 F11)  (M6 F4 v M12 F10)  (M5 F3 v M11  F9)
(M4 F2 v M10  F8)  (M3 F1 v  M9 F14)  (M2 F7 v M8  F13)
(M6 F2 v M11 F14)  (M5 F1 v M10 F13)  (M4 F7 v M9  F12)
(M3 F6 v  M8 F11)  (M2 F5 v M14 F10)  (M1 F4 v M13  F9)
(M2 F2 v  M9  F9)  (M1 F6 v M14 F12)  (M7 F3 v M12  F8)
(M5 F6 v  M9 F10)  (M4 F5 v  M8  F9)  (M3 F4 v M14  F8)
(M2 F3 v M13 F14)  (M1 F2 v M12 F13)  (M7 F1 v M11 F12)
(M4 F3 v M14 F13)  (M3 F2 v M13 F12)  (M2 F1 v M12 F11)
(M1 F7 v M11 F10)  (M7 F6 v M10  F9)  (M6 F5 v  M9  F8)
(M6 F7 v M10 F11)  (M5 F4 v  M8 F14)
3
Requests / Re: 28 player mixed doubles no repeat round robin
« Last post by bobmasi on Today at 08:22:50 AM »
Thanks for the reply Ian.  I would like each player to play 5 rounds.  Need schedule for that.
I tried to use your excel scheduler but I could not find how to set it for mixed doubles (just works for singles)??
4
Requests / Re: 28 player mixed doubles no repeat round robin
« Last post by Ian Wakeling on Today at 03:53:00 AM »
How many rounds do you want to play?  7 rounds is good because you should be able to arrange that everyone has exactly 3 games.
5
Requests / 28 player mixed doubles no repeat round robin
« Last post by bobmasi on January 16, 2022, 08:28:46 AM »
Hello,
Looking for help in organizing a One Day platform tennis tourney.
28 players, 14 men and 14 women.  Mixed doubles with no repeat of partner or opponent.
We have 3 courts to play on.
6
Programming / Re: Round robin to bracket
« Last post by Ian Wakeling on January 04, 2022, 09:13:41 AM »
This is not my area of expertise as I have never designed knockout tournaments, but my instinct is to design it without byes first, and then assign some of the pools to be byes afterwards.  That way it should be easy to ensure that the top half of the bracket contains one member from each pool, and the bottom half contains the same, so two teams from the same pool can only meet in the final.  As I said, I am not the right person to ask. Haven't there been football (soccer) tournaments with 6 pools of 4, so somebody must have considered fairness in this context.
7
Requests / Re: Balance Pool Seeds In Quadrants of Bracket
« Last post by aprens on January 03, 2022, 08:26:30 AM »
Hi Ian, this post is interesting. How can i apply latin square for this situation?

6 pools and advance top 2 of each pool.

1A 2A
1B 2B
1C 2C
1D 2D

1E 2E
1F 2F

Games should be (in this order):

1A - BYE (no team)
2B - 2C
1D - BYE
1E - 2F
1B - BYE
2A - 2D
1D - BYE
1F - 2E

Thanks.
8
Requests / Re: Rotating Mixed Partner Round Robin - 12 people
« Last post by Ian Wakeling on January 02, 2022, 04:57:39 AM »
Hi Cindi,

As a whole, the schedule I showed will have some of the opposition pair balance that you asked for but it will not be perfect.  For example it is OK for F1, as she plays against F2,F3 & F6 twice and against F4 & F5 three times - except that the three games against F4 all occur in the first 6 rounds.

You are asking for a perfect 6 round schedule, but I don't believe that it exists.  It is possible to specify the 18 games necessary, but I have found no way of 'resolving' them into 6 rounds of 3.   Note that it is possible to make 9 rounds of two games, but I guess you do not want to use only two courts and have byes.
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Requests / Re: Rotating Mixed Partner Round Robin - 12 people
« Last post by Cindi on January 02, 2022, 01:02:02 AM »
Hi. I've run through the schedule and realize I forgot to add one more criteria: in the first 6 rounds, each female should play against each of the other females once (and one twice in round 6), and the same for rounds 7-12, with the repeated female opponent being different than the one in the first 6 rounds, also being played in round 12. So at the end of all rounds, each female will have played against all other females twice, and two of the females 3 times. Lastly, is it possible to pair each female with the males in the same order for rounds 1-6 and 7-12? So that F1 pairs with M1 in rounds 1 and 7, with M2 in rounds 2 and 8, etc.
Thanks again for all your help! Happy New Year! 
10
Requests / Re: 12 Draw Round Robin Please
« Last post by b4ted on December 23, 2021, 02:33:46 PM »
Many Thanks Ian - exactly that