Round Robin Tournament Scheduling

Doubles round robin for 10 players

zooey123 · 3 · 12990

zooey123

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on: January 02, 2013, 04:03:44 PM
I need a schedule for 10 doubles players, 8 at a time, on 2 courts, for 15 weeks.  Would like equal playing time and no more than one bye in a row.  Also, do not repeat partnerships or oppose the same pairs more than twice.  Is this possible?  Thanks in advance!


Ian Wakeling

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Reply #1 on: January 03, 2013, 03:06:17 AM
The total number of byes must be 30, or 3 byes per player, so the total number of games per player is 12.  But with 12 partners, and 24 opponents your criteria must be exceeded, otherwise it is possible to construct a suitable schedule.  For example:

  Court 1       Court 2      Byes
(7 2 v 9 6)  (3 5 v 1 10)  (4 8)
(8 3 v 10 7)  (4 1 v 2 6)  (5 9)
(9 4 v 6 8)  (5 2 v 3 7)  (1 10)
(10 5 v 7 9)  (1 3 v 4 8)  (2 6)
(6 1 v 8 10)  (2 4 v 5 9)  (3 7)

(1 9 v 3 2)  (4 6 v 7 10)  (5 8)
(2 10 v 4 3)  (5 7 v 8 6)  (1 9)
(3 6 v 5 4)  (1 8 v 9 7)  (2 10)
(4 7 v 1 5)  (2 9 v 10 8)  (3 6)
(5 8 v 2 1)  (3 10 v 6 9)  (4 7)

(9 3 v 4 7)  (5 2 v 10 6)  (1 8)
(10 4 v 5 8)  (1 3 v 6 7)  (2 9)
(6 5 v 1 9)  (2 4 v 7 8)  (3 10)
(7 1 v 2 10)  (3 5 v 8 9)  (4 6)
(8 2 v 3 6)  (4 1 v 9 10)  (5 7)

Everyone has at least 3 games between byes and plays 6 times on each court.

Hope that helps.
« Last Edit: January 03, 2013, 03:08:28 AM by Ian »


zooey123

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Reply #2 on: January 03, 2013, 11:24:49 AM
Excellent, thank you so much!