Round Robin Tournament Scheduling

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31
You will need 15 weeks to play all the other teams twice.  For example:

(A B) (D F)
(C E) (A D)
(B D) (A F)
(D E) (C F)
(A C) (B E)
(E F) (C D)
(B F) (A E)
(D E) (B C)
(A E) (C F)
(B F) (A D)
(B C) (E F)
(C D) (A B)
(D F) (C E)
(A C) (B D)
(A F) (B E)
32
6 Team Tennis League schedule for  10 weeks so that each team plays all the others twice.
Schedule 4 teams at a time with 2 byes each week.  
This seem easy but I cant seem to get the spreadsheet to solve this.
HepBil
33
Requests / Round robin Mixer Balanced
« Last post by LindaG on June 29, 2022, 12:30:53 AM »
Looking for RR doubles mixers. We will have 12-26 players show each week for 7 rounds. A player’s partner will be a different person each game and play on court with each person at least once. And byes equal as can be. 
 
12-15 players 3 courts 
16-19 players 4 courts 
20-23 players 5 courts 
24-27 players 6 courts 
34
Requests / Re: Please help!
« Last post by Ian Wakeling on June 28, 2022, 04:02:35 AM »
Here is a schedule with similar properties to the one above for 33 players , 6 courts and 30 rounds.  For these numbers the byes can't be balanced and so players 10,11,12,22,23,24 have only 21 games, while the other players have 22 games.

        Court 1        Court 2        Court 3        Court 4        Court 5        Court 6                  BYES
  (11  4 v  9 22) (32  7 v 15 26) (33 14 v  5 21) (27 25 v 16  6) (28 30 v 31 17) ( 1 29 v 18 20)  (12 19  8 13 23 10  2 24  3)
  (12  5 v  7 23) (33  8 v 13 27) (31 15 v  6 19) (25 26 v 17  4) (29 28 v 32 18) ( 2 30 v 16 21)  (10 20  9 14 24 11  3 22  1)
  (10  6 v  8 24) (31  9 v 14 25) (32 13 v  4 20) (26 27 v 18  5) (30 29 v 33 16) ( 3 28 v 17 19)  (11 21  7 15 22 12  1 23  2)
  (25  7 v 16 11) (15 24 v 21  3) (22 12 v 32 30) (13  5 v 17  6) (19 33 v 29  4) ( 1  2 v 28  8)  (26 27 31 23 14  9 10 20 18)
  (26  8 v 17 12) (13 22 v 19  1) (23 10 v 33 28) (14  6 v 18  4) (20 31 v 30  5) ( 2  3 v 29  9)  (27 25 32 24 15  7 11 21 16)
  (27  9 v 18 10) (14 23 v 20  2) (24 11 v 31 29) (15  4 v 16  5) (21 32 v 28  6) ( 3  1 v 30  7)  (25 26 33 22 13  8 12 19 17)
  (11 12 v 15 18) (32 22 v 33  2) (24 29 v  5 14) ( 1 31 v  8 27) (21 25 v  7 19) ( 6 13 v  9  3)  (26 23 28 10  4 17 30 20 16)
  (12 10 v 13 16) (33 23 v 31  3) (22 30 v  6 15) ( 2 32 v  9 25) (19 26 v  8 20) ( 4 14 v  7  1)  (27 24 29 11  5 18 28 21 17)
  (10 11 v 14 17) (31 24 v 32  1) (23 28 v  4 13) ( 3 33 v  7 26) (20 27 v  9 21) ( 5 15 v  8  2)  (25 22 30 12  6 16 29 19 18)
  (30 26 v  4 24) ( 8 23 v 11 21) (27  3 v 28 25) (22 15 v  2 13) (19 14 v 18 33) (31  5 v  7  6)  (12  9 10 17  1 20 32 29 16)
  (28 27 v  5 22) ( 9 24 v 12 19) (25  1 v 29 26) (23 13 v  3 14) (20 15 v 16 31) (32  6 v  8  4)  (10  7 11 18  2 21 33 30 17)
  (29 25 v  6 23) ( 7 22 v 10 20) (26  2 v 30 27) (24 14 v  1 15) (21 13 v 17 32) (33  4 v  9  5)  (11  8 12 16  3 19 31 28 18)
  (18 23 v 25 20) (10 17 v 12 29) ( 5  6 v 22 21) (14  2 v 28 26) ( 1 33 v 11 32) ( 7 24 v  9 30)  (16 13  3  4 31 15  8 27 19)
  (16 24 v 26 21) (11 18 v 10 30) ( 6  4 v 23 19) (15  3 v 29 27) ( 2 31 v 12 33) ( 8 22 v  7 28)  (17 14  1  5 32 13  9 25 20)
  (17 22 v 27 19) (12 16 v 11 28) ( 4  5 v 24 20) (13  1 v 30 25) ( 3 32 v 10 31) ( 9 23 v  8 29)  (18 15  2  6 33 14  7 26 21)
  (29 21 v 26 22) (33 15 v 18 25) (19 10 v  8 30) ( 7 27 v  4 16) (17  2 v 23  1) (12  6 v 14 20)  ( 9  3 24  5 32 11 31 13 28)
  (30 19 v 27 23) (31 13 v 16 26) (20 11 v  9 28) ( 8 25 v  5 17) (18  3 v 24  2) (10  4 v 15 21)  ( 7  1 22  6 33 12 32 14 29)
  (28 20 v 25 24) (32 14 v 17 27) (21 12 v  7 29) ( 9 26 v  6 18) (16  1 v 22  3) (11  5 v 13 19)  ( 8  2 23  4 31 10 33 15 30)
  (30  4 v 29  2) (13 26 v  9  8) ( 7 20 v 33 17) (11  1 v 32 27) (14 18 v 16 22) ( 3 12 v 21 19)  (10 31  5 24 15 25 28 23  6)
  (28  5 v 30  3) (14 27 v  7  9) ( 8 21 v 31 18) (12  2 v 33 25) (15 16 v 17 23) ( 1 10 v 19 20)  (11 32  6 22 13 26 29 24  4)
  (29  6 v 28  1) (15 25 v  8  7) ( 9 19 v 32 16) (10  3 v 31 26) (13 17 v 18 24) ( 2 11 v 20 21)  (12 33  4 23 14 27 30 22  5)
  (24 32 v 23 16) (33 30 v 14  8) (12  1 v 26  6) (31 19 v  7  2) (11 29 v 15 27) (18 28 v 21  4)  (10  9  5 13  3 17 22 20 25)
  (22 33 v 24 17) (31 28 v 15  9) (10  2 v 27  4) (32 20 v  8  3) (12 30 v 13 25) (16 29 v 19  5)  (11  7  6 14  1 18 23 21 26)
  (23 31 v 22 18) (32 29 v 13  7) (11  3 v 25  5) (33 21 v  9  1) (10 28 v 14 26) (17 30 v 20  6)  (12  8  4 15  2 16 24 19 27)
  (16  8 v 14 29) ( 1 21 v 10  5) (24 13 v 25  2) (19 32 v 30 18) (12  9 v 22 23) (11 17 v  4  3)  ( 6 26 28  7 33 31 15 20 27)
  (17  9 v 15 30) ( 2 19 v 11  6) (22 14 v 26  3) (20 33 v 28 16) (10  7 v 23 24) (12 18 v  5  1)  ( 4 27 29  8 31 32 13 21 25)
  (18  7 v 13 28) ( 3 20 v 12  4) (23 15 v 27  1) (21 31 v 29 17) (11  8 v 24 22) (10 16 v  6  2)  ( 5 25 30  9 32 33 14 19 26)
  (11 31 v 14 13) ( 8 12 v  4 28) ( 1 17 v 16  9) (22 10 v 32 25) (27  6 v 33 24) (15 19 v 26 20)  (29 18  3 23 21 30  7  5  2)
  (12 32 v 15 14) ( 9 10 v  5 29) ( 2 18 v 17  7) (23 11 v 33 26) (25  4 v 31 22) (13 20 v 27 21)  (30 16  1 24 19 28  8  6  3)
  (10 33 v 13 15) ( 7 11 v  6 30) ( 3 16 v 18  8) (24 12 v 31 27) (26  5 v 32 23) (14 21 v 25 19)  (28 17  2 22 20 29  9  4  1)
35
Requests / Re: Please help!
« Last post by Ian Wakeling on June 28, 2022, 03:32:48 AM »
Here is a doubles schedule for 31 players, 6 courts and 31 rounds, all the partnerships are different, players oppose each other once or twice (if you do play the last round it will be balanced in the sense that everyone has exactly 7 byes and the same number of games).  I don't know what you mean by 'Beijing' doubles, so hope that's not something important.

    Court 1        Court 2        Court 3          Court 4        Court 5        Court 6                BYES
 ( 1 19 v 30 23) (24  9 v 12 14) ( 6 11 v  5 27) ( 7 26 v  8  2) (18  4 v 21 10) (28 20 v 16 13)  (25 29 15 17  3 31 22)
 ( 2 20 v 31 24) (25 10 v 13 15) ( 7 12 v  6 28) ( 8 27 v  9  3) (19  5 v 22 11) (29 21 v 17 14)  (26 30 16 18  4  1 23)
 ( 3 21 v  1 25) (26 11 v 14 16) ( 8 13 v  7 29) ( 9 28 v 10  4) (20  6 v 23 12) (30 22 v 18 15)  (27 31 17 19  5  2 24)
 ( 4 22 v  2 26) (27 12 v 15 17) ( 9 14 v  8 30) (10 29 v 11  5) (21  7 v 24 13) (31 23 v 19 16)  (28  1 18 20  6  3 25)
 ( 5 23 v  3 27) (28 13 v 16 18) (10 15 v  9 31) (11 30 v 12  6) (22  8 v 25 14) ( 1 24 v 20 17)  (29  2 19 21  7  4 26)
 ( 6 24 v  4 28) (29 14 v 17 19) (11 16 v 10  1) (12 31 v 13  7) (23  9 v 26 15) ( 2 25 v 21 18)  (30  3 20 22  8  5 27)
 ( 7 25 v  5 29) (30 15 v 18 20) (12 17 v 11  2) (13  1 v 14  8) (24 10 v 27 16) ( 3 26 v 22 19)  (31  4 21 23  9  6 28)
 ( 8 26 v  6 30) (31 16 v 19 21) (13 18 v 12  3) (14  2 v 15  9) (25 11 v 28 17) ( 4 27 v 23 20)  ( 1  5 22 24 10  7 29)
 ( 9 27 v  7 31) ( 1 17 v 20 22) (14 19 v 13  4) (15  3 v 16 10) (26 12 v 29 18) ( 5 28 v 24 21)  ( 2  6 23 25 11  8 30)
 (10 28 v  8  1) ( 2 18 v 21 23) (15 20 v 14  5) (16  4 v 17 11) (27 13 v 30 19) ( 6 29 v 25 22)  ( 3  7 24 26 12  9 31)
 (11 29 v  9  2) ( 3 19 v 22 24) (16 21 v 15  6) (17  5 v 18 12) (28 14 v 31 20) ( 7 30 v 26 23)  ( 4  8 25 27 13 10  1)
 (12 30 v 10  3) ( 4 20 v 23 25) (17 22 v 16  7) (18  6 v 19 13) (29 15 v  1 21) ( 8 31 v 27 24)  ( 5  9 26 28 14 11  2)
 (13 31 v 11  4) ( 5 21 v 24 26) (18 23 v 17  8) (19  7 v 20 14) (30 16 v  2 22) ( 9  1 v 28 25)  ( 6 10 27 29 15 12  3)
 (14  1 v 12  5) ( 6 22 v 25 27) (19 24 v 18  9) (20  8 v 21 15) (31 17 v  3 23) (10  2 v 29 26)  ( 7 11 28 30 16 13  4)
 (15  2 v 13  6) ( 7 23 v 26 28) (20 25 v 19 10) (21  9 v 22 16) ( 1 18 v  4 24) (11  3 v 30 27)  ( 8 12 29 31 17 14  5)
 (16  3 v 14  7) ( 8 24 v 27 29) (21 26 v 20 11) (22 10 v 23 17) ( 2 19 v  5 25) (12  4 v 31 28)  ( 9 13 30  1 18 15  6)
 (17  4 v 15  8) ( 9 25 v 28 30) (22 27 v 21 12) (23 11 v 24 18) ( 3 20 v  6 26) (13  5 v  1 29)  (10 14 31  2 19 16  7)
 (18  5 v 16  9) (10 26 v 29 31) (23 28 v 22 13) (24 12 v 25 19) ( 4 21 v  7 27) (14  6 v  2 30)  (11 15  1  3 20 17  8)
 (19  6 v 17 10) (11 27 v 30  1) (24 29 v 23 14) (25 13 v 26 20) ( 5 22 v  8 28) (15  7 v  3 31)  (12 16  2  4 21 18  9)
 (20  7 v 18 11) (12 28 v 31  2) (25 30 v 24 15) (26 14 v 27 21) ( 6 23 v  9 29) (16  8 v  4  1)  (13 17  3  5 22 19 10)
 (21  8 v 19 12) (13 29 v  1  3) (26 31 v 25 16) (27 15 v 28 22) ( 7 24 v 10 30) (17  9 v  5  2)  (14 18  4  6 23 20 11)
 (22  9 v 20 13) (14 30 v  2  4) (27  1 v 26 17) (28 16 v 29 23) ( 8 25 v 11 31) (18 10 v  6  3)  (15 19  5  7 24 21 12)
 (23 10 v 21 14) (15 31 v  3  5) (28  2 v 27 18) (29 17 v 30 24) ( 9 26 v 12  1) (19 11 v  7  4)  (16 20  6  8 25 22 13)
 (24 11 v 22 15) (16  1 v  4  6) (29  3 v 28 19) (30 18 v 31 25) (10 27 v 13  2) (20 12 v  8  5)  (17 21  7  9 26 23 14)
 (25 12 v 23 16) (17  2 v  5  7) (30  4 v 29 20) (31 19 v  1 26) (11 28 v 14  3) (21 13 v  9  6)  (18 22  8 10 27 24 15)
 (26 13 v 24 17) (18  3 v  6  8) (31  5 v 30 21) ( 1 20 v  2 27) (12 29 v 15  4) (22 14 v 10  7)  (19 23  9 11 28 25 16)
 (27 14 v 25 18) (19  4 v  7  9) ( 1  6 v 31 22) ( 2 21 v  3 28) (13 30 v 16  5) (23 15 v 11  8)  (20 24 10 12 29 26 17)
 (28 15 v 26 19) (20  5 v  8 10) ( 2  7 v  1 23) ( 3 22 v  4 29) (14 31 v 17  6) (24 16 v 12  9)  (21 25 11 13 30 27 18)
 (29 16 v 27 20) (21  6 v  9 11) ( 3  8 v  2 24) ( 4 23 v  5 30) (15  1 v 18  7) (25 17 v 13 10)  (22 26 12 14 31 28 19)
 (30 17 v 28 21) (22  7 v 10 12) ( 4  9 v  3 25) ( 5 24 v  6 31) (16  2 v 19  8) (26 18 v 14 11)  (23 27 13 15  1 29 20)
 (31 18 v 29 22) (23  8 v 11 13) ( 5 10 v  4 26) ( 6 25 v  7  1) (17  3 v 20  9) (27 19 v 15 12)  (24 28 14 16  2 30 21)
36
Requests / Re: Please help!
« Last post by kjgrossman on June 27, 2022, 02:29:57 PM »
Okay, for my group of 64 I am just going to play 3's and I got that figured out.  So, what I need is a Beijing's doubles schedule for 31 players on 6 courts for 30 rounds and 
33  players Beijings doubles  on 6 courts for 30 rounds.  Is that do able?  THANK YOU SO MUCH!!
37
Requests / Re: Please help!
« Last post by Ian Wakeling on June 27, 2022, 09:54:59 AM »
Approximately how many rounds do you think you can play?  I need to have some idea.

Is the size of 64 player group absolutely fixed?  I ask as if you have 10 courts with 6 players per court, then a schedule for 60 players is obviously best.
38
Requests / Re: Please help!
« Last post by kjgrossman on June 27, 2022, 09:20:42 AM »
Ahhh...yes I did not do a very good job thinking this through in my description. 

I have 5 nets but because they are playing only on half the court I actually have 10 courts available for the group of 64 and 6 courts available for the group of 31 and 32.  After reading your reply you are probably correct and to prevent too many kids from sitting out in the group of 64 lets change that to groups of 3's playing on 10 courts.  Does that sound like a better idea?  

Thank you so much for your help!!
39
Requests / Re: Please help!
« Last post by Ian Wakeling on June 27, 2022, 04:01:22 AM »
To me it seems that you will have way too many players sitting around doing nothing.  Taking 32 players and 3 courts of doubles as an example, you could play 8 rounds as follows:

    Court 1      Court 2      Court 3
  (32 16 11 26) (30  6 23 22) (15  1 19  7)
  (25  9 12 27) (31  7 24 23) (16  2 20  8)
  (26 10 13 28) (32  8 17 24) ( 9  3 21  1)
  (27 11 14 29) (25  1 18 17) (10  4 22  2)
  (28 12 15 30) (26  2 19 18) (11  5 23  3)
  (29 13 16 31) (27  3 20 19) (12  6 24  4)
  (30 14  9 32) (28  4 21 20) (13  7 17  5)
  (31 15 10 25) (29  5 22 21) (14  8 18  6)

Here no two players appear on court together twice, so they are free to split into two-vs-two any way you like. There will be 20 players with a bye in each round, and any one player has 3 games and 5 byes.

Can you state how many rounds you will be able to play?  Are there more than 5 courts available?
40
Requests / Please help!
« Last post by kjgrossman on June 27, 2022, 12:43:30 AM »
Hi,
I am a new HS volleyball coach and I am running my first VB camp.  I want to have the girls playing lots of matches with various team sizes.  I was hoping you could help me with the various match ups.

64 players on 5 courts playing doubles


32 players on 3 courts playing doubles
32 players on 3 courts playing triples

31 players on 3 courts playing doubles
31 players on 3 courts playing triples


Any help you can give would be sooooo great!!  I had a website I used a few years ago and it is no longer online and I waited till the last minute thinking I had a resource.  My camp starts Tues. 6/28. Is there anyway you could help me by then? Thank you for your time!