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Robin
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Balanced Round robin tournament schedule for 12 players

12 player
schedule
Match 1Match 2Match 3Match 4Match 5Match 6
Round 1 3 12 1 2 4 11 5 10 6 9 7 8
Round 2 9 5 8 6 1 710 411 312 2
Round 3 4 9 2 11 3 10 1 12 5 8 6 7
Round 410 2 7 5 8 4 9 3 1 611 12
Round 5 5 612 10 2 9 3 8 4 7 1 11
Round 611 10 6 4 7 3 8 2 9 12 5 1
Round 7 6 311 912 8 2 710 1 4 5
Round 812 7 5 3 6 2 4 1 8 11 9 10
Round 9 7 1110 8 9 112 6 2 5 3 4
Round 10 2 4 3 1 5 12 6 11 7 10 8 9
Round 11 1 8 9 710 611 512 4 2 3

Note: Over the course of a balanced schedule everyone will play in every match place and on both sides of each match place.
No one will have unfair advantage due to repeated placement at a specific match place or side.
Because there is one less round than players, each player will be in one match place where they play on just one side.

A balanced schedule for 11 can be made by looking at the cyclic schedule and using Match 1 for those sitting out a round.

vb1:it12
modified: March 17, 2005
https://www.devenezia.com/downloads/round-robin/rounds.php