Round Robin Tournament Scheduling

badminton tournamount

superwomble16 · 2 · 2437

superwomble16

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on: January 21, 2024, 03:34:10 PM
hi i want a rotating pairs badminton tournamount using 20 players . it will be played over 10 rounds using 4 courts per round 
and therefore 4 players will sit out per round . The individual player will sit out all exactly twice and hopefully spread out over
the 10 rounds .
i have found one such tournamount using plan2play but the variety of partners is limited .
i would like a player to only play once with any other player and not play against the same pair twice .
A variety of matches with each player playing with the most players as possible creating a good mixup would be ideal .
i have just come across this site and it looks perfect for mr needs,hopefully. 
any help would be much appreciated . 


Ian Wakeling

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Reply #1 on: January 23, 2024, 02:55:48 PM
I had not seen plan2play before so I took a quick look, and I ended up with a schedule where one of the 20 players had 9 others players who they never played with either as partners or opponents.  It's possible to do a lot lot better and I offer the schedule below which gives you everything that you asked for except for the fact that players 15 & 19 oppose twice. 

(10  3 v  7 14)  ( 9 11 v  2  1)  (13 15 v  5 12)  ( 8  6 v  4 16)
(17  5 v 19  9)  ( 4 11 v  7 10)  (12  1 v  3  6)  ( 2 18 v 20  8)
( 7 20 v 17  6)  ( 8 14 v 19  1)  ( 4  5 v 16 18)  (15  3 v  2 13)
(16 12 v  9  2)  ( 1  3 v 18 17)  ( 4 19 v 15 11)  (14 10 v 20 13)
(10 12 v  8 18)  ( 9  6 v 14 19)  (20 11 v  5 15)  (17  7 v 16 13)
( 9  8 v 15  7)  (12 13 v  1  4)  ( 5  2 v 10  6)  ( 3 14 v 16 11)
(17 11 v  6 12)  ( 5 20 v  8  1)  (10  4 v  9  3)  ( 7 18 v 19  2)
(17  3 v  8  5)  (15 18 v 14  6)  (13 19 v  2 16)  ( 7  4 v 20  1)
(17  2 v  4 14)  (15  1 v 16 10)  ( 3 12 v 20 19)  ( 9 18 v 13 11)
(12 14 v  5  7)  (20 18 v  9 16)  (11  6 v 13  8)  (17 19 v 10 15)

The byes have a pattern to them 17,18,19,20 in round 1, 13,14,15,16 in round 2, etc..  Hope that helps.