League and round-robin fixtures for 12 teams

 

Week 1 Week 2 Week 3 Week 4 Week 5 Week 6
 1v12 11v 1  1v10  9v 1  1v 8  7v 1
 2v11 10v 2  2v 9  8v 2  2v 7  6v 2
 3v10  9v 3  3v 8  7v 3  3v 6  5v 3
 4v 9  8v 4  4v 7  6v 4  4v 5 12v 4
 5v 8  7v 5  5v 6 12v 5 11v 9  8v11
 6v 7 12v 6 11v12 10v11 10v12  9v10
           
Week 7 Week 8 Week 9 Week 10 Week 11  
 1v 6  5v 1  1v 4  3v 1  1v 2  
 2v 5  4v 2  2v 3 12v 2 11v 3  
 3v 4 12v 3 11v 5  4v11 10v 4  
11v 7  6v11 10v 6  5v10  9v 5  
10v 8  7v10  9v 7  6v 9  8v 6  
 9v12  8v 9  8v12  7v 8  7v12

 

In the above fixtures the following teams are paired so when one is at home the other is away:

1 and 12
2 and 7
3 and 8
4 and 9
5 and 10
6 and 11