Round Robin Tournament Scheduling

8-person doubles tennis league

John_Szozda · 7 · 12718

John_Szozda

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on: September 17, 2008, 10:11:10 AM
I run a tennis league with eight players playing doubles on two courts. I can't seem to make sure each player plays an equal amount of times with each player and roughly the same amount of times agisnt each player. There are 32 weeks. Can someone help?


tgardner

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Reply #1 on: September 17, 2008, 05:53:16 PM
Check out Richard's 8-man whist schedule at this site.  After 7 rounds (weeks) each player plays with all others once and against all others twice.  Then you can change the name to number correspondence and repeat for the next 7 weeks, etc...  Still will require some manipulation, but I think you'll get pretty close to what you want.


John_Szozda

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Reply #2 on: September 18, 2008, 07:44:40 AM
Thank you. It works as far as playing evenly with each person. But, the inequity is still there in the opponents a player plays. Under this sytem, player 2 plays against 3 and 8 four times and doesn't play against 5 and 6.


Ian Wakeling

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Reply #3 on: September 18, 2008, 12:14:22 PM
John,

The Whist schedule is there and it is what you want.  I think the problem is that you have javascript disabled in your browser.


John_Szozda

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Reply #4 on: September 18, 2008, 02:40:17 PM
Ian

I can the whist schedule. I'm not familiar with the game but am assuming it matchesw one player against another, versus matching a team of two against another team of two.


Ian Wakeling

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Reply #5 on: September 19, 2008, 05:38:53 PM
John,

Whist Schedules are for pairs of players, not one-against-one.  Below is the 8 player schedule.  A lot of the formatting has been lost as I have just pasted in the details from Richard's Whist page, but the first two columns with pairs of numbers are the pairs that play against each other on Table 1/Court 1 and the last two columns are the players that play on Table 2/Court 2.

Whist tournament schedule for 8 players

8 player
schedule
Table 1Table 2
Pair 1Pair 2Pair 3Pair 4
Round 18,12,63,45,7
Round 28,23,74,56,1
Round 38,34,15,67,2
Round 48,45,26,71,3
Round 58,56,37,12,4
Round 68,67,41,23,5
Round 78,71,52,34,6
Note: Whist schedules are for pairs of pairs.
Looking down the tables -- at the end of the tournament each player has been paired once with each player and opposed each player twice.
  
« Last Edit: March 19, 2019, 09:26:44 PM by Richard A. DeVenezia »


John_Szozda

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Reply #6 on: September 22, 2008, 07:47:37 AM
Thanks to everyone who helped out. This will work.

John