Round Robin Tournament Scheduling

Schedules - You must register to Post and Download => Requests => Topic started by: Markie on March 19, 2026, 12:53:42 PM

Title: Tennis season 14 players
Post by: Markie on March 19, 2026, 12:53:42 PM

Dear Ian,
I looking for a "tennis season list" for the following :

- 14 players.
- 3 tennis courts.
- Each player partners with everyone 2x.
- My guess is that you should play each opponent 4x.
- 2 players have to sit out each round (reserve).

I hope that you can help me.

Title: Re: Tennis season 14 players
Post by: Ian Wakeling on March 20, 2026, 10:04:34 AM

Hi Markie,

A balanced schedule is not possible here, but the closest it is possible to come to meeting you criterion of 'everyone 2x' is to have 30 rounds.  In the schedule below players 6, 9, 11 & 14 have one fewer game than all the others, but adding the match (6 11 vs 9 14) would give you everyone paired together exactly twice.

( 8 10 v 14  3)  ( 5 12 v  4 13)  (11  6 v  2  1)
( 1 11 v  7 10)  (12  4 v  8 13)  ( 3  9 v  5  2)
( 6  9 v  1  4)  (11  5 v  8  7)  (10 14 v  3 13)
( 7  6 v 12  2)  ( 3 10 v  1  4)  (14  8 v  9 13)
( 6  3 v  4 11)  ( 2  9 v 10 12)  (13 14 v  7  5)
( 2 11 v  7  9)  ( 1  6 v 12 14)  ( 8  4 v 10  5)
(11  3 v 13  2)  ( 1 12 v 14  5)  ( 9  8 v  7  6)
( 1 11 v 12  4)  (14 10 v  3  5)  ( 2 13 v  9  8)
( 7 11 v 10  6)  ( 4  2 v 13 14)  ( 5  1 v  8  3)
( 5  9 v  6 12)  ( 8  3 v  7 14)  (10  4 v  2  1)
( 4  6 v  7 13)  ( 3  2 v  5 14)  ( 8 11 v  9 12)
(12  1 v  2  7)  ( 8 10 v  6  9)  ( 3  4 v 13 11)
( 1  6 v  5 13)  (10  9 v 12  2)  (14  4 v 11  7)
( 7 12 v 13 10)  ( 9 11 v 14  1)  ( 6  3 v  5  8)
( 8  2 v  4 14)  ( 7  9 v  1 13)  ( 5  3 v  6 12)
(11  9 v  4  5)  ( 3  2 v 13  7)  ( 8  6 v 10 12)
( 2  9 v  4  5)  (14  6 v  7 10)  ( 3  1 v 11  8)
(12 13 v  8  1)  ( 3  7 v 10 11)  (14  2 v  5  6)
( 1  9 v  3  7)  (10  4 v 12  8)  (13  6 v 14 11)
( 9  1 v 13  3)  (11 14 v  2 10)  ( 4  7 v  5 12)
( 9 13 v 10  6)  (14 12 v 11  5)  ( 2  4 v  8  1)
(12  3 v  2  6)  (14  8 v 10  1)  ( 5  7 v  4 13)
( 6  8 v  2  7)  (10  3 v  9  4)  (12 11 v  1  5)
(13 11 v  5  8)  ( 9 14 v  7  1)  ( 6  2 v  3  4)
( 7 12 v 14  2)  ( 3  1 v  6 13)  (10  9 v 11  4)
( 5 10 v  7  1)  ( 2 11 v  8 13)  ( 3 14 v  9 12)
(10 13 v 12 11)  ( 6  4 v  1 14)  ( 9  5 v  7  8)
( 6 14 v  4  9)  (12  8 v  3 11)  ( 5 13 v  2 10)
( 2  5 v  1 10)  (13 12 v  3  9)  ( 4  8 v  7 14)
(10 11 v  6  5)  ( 7  4 v  3 12)  ( 1 13 v  8  2)

Title: Re: Tennis season 14 players
Post by: Markie on March 20, 2026, 11:04:51 AM

Thanks ... I'm missing the 2x reserve.

I also found this one ... I can fill it in twice ... I only have to shuffle the names in the 2nd 14 round list.
(https://i.imgur.com/5mZDsaN.png)