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# Bridge & other card games/Marathon Bridge Match Movements

Question
I need a rotation for 11 teams.  We play 9 matches during the year.
If possible, everyone should play only one match a month.  What is the best solution to this?  Thank you.
Carol

Hi,

Here is a rotation for 11 teams. Since there is an odd number of teams, one team will need to sit out each month. The complete rotation lasts 11 months so if you are only playing for 9 months you can just use the first 9 rows.

Give each team a number from 1-11.

Month          Team Matchups

1     11-2  10-3  9-4  8-5  7-6  Team 1 sits out
2     1-3   11-4 10-5  9-6  8-7       2 sits out
3     2-4    1-5 11-6 10-7  9-8       3 sits out
4     3-5    2-6  1-7 11-8 10-9       4 sits out
5     4-6    3-7  2-8  1-9 11-10      5 sits out
6     5-7    4-8  3-9 2-10 1-11       6 sits out
7     6-8    5-9 4-10 3-11  2-1       7 sits out
8     7-9   6-10 5-11  4-1  3-2       8 sits out
9    8-10   7-11  6-1  5-2  4-3       9 sits out
10    9-11    8-1  7-2  6-3  5-4      10 sits out
11    10-1    9-2  8-3  7-4  6-5

Bridge & other card games