Round Robin Tournament Scheduling

Doubles Playoffs for 6 individuals  

carebear · 3 · 2860

carebear

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on: February 21, 2017, 12:35:30 PM
I have 6 men vying for 4 positions on a team. Need to establish their "ranks".   How do I do the round robin play as doubles where they play with most or all of each other?
thx so much for any help!


Ian Wakeling

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Reply #1 on: February 22, 2017, 03:15:58 AM
There is no balanced round-robin that you could use to do this.   For example I can make the following schedule:

[(B E):(C D)]
[(C E):(D F)]
[(B D):(A C)]
[(E F):(A B)]
[(A F):(B C)]
[(B F):(D E)]
[(A E):(C F)]

But, A never partners D, and also  A & D have one game fewer than the others.  The opponent balance is poor, 3 pairs only oppose once, while the pair E & F oppose 3 times.
« Last Edit: March 19, 2019, 08:14:36 PM by Richard A. DeVenezia »


carebear

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Reply #2 on: February 22, 2017, 12:27:18 PM
Thanks appreciate your response and confirming what I thought to be true.  I did one RR where 1 player plays with all 5 players and the rest played with 3.  I suggested that the strongest be allocated first position of the 4, then the 5 vy for the remaining 3 positions.   Thx again