League and round-robin fixtures for 18 teams

Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 Week 8 Week 9
 1v18 17v 1  1v16 15v 1  1v14 13v 1  1v12 11v 1  1v10
 2v17 16v 2  2v15 14v 2  2v13 12v 2  2v11 10v 2  2v 9
 3v16 15v 3  3v14 13v 3  3v12 11v 3  3v10  9v 3  3v 8
 4v15 14v 4  4v13 12v 4  4v11 10v 4  4v 9  8v 4  4v 7
 5v14 13v 5  5v12 11v 5  5v10  9v 5  5v 8  7v 5  5v 6
 6v13 12v 6  6v11 10v 6  6v 9  8v 6  6v 7 18v 6 17v11
 7v12 11v 7  7v10  9v 7  7v 8 18v 7 17v13 12v17 16v12
 8v11 10v 8  8v 9 18v 8 17v15 14v17 16v14 13v16 15v13
 9v10 18v 9 17v18 16v17 16v18 15v16 15v18 14v15 14v18
                 
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17  
 9v 1  1v 8  7v 1  1v 6  5v 1  1v 4  3v 1  1v 2  
 8v 2  2v 7  6v 2  2v 5  4v 2  2v 3 18v 2 17v 3  
 7v 3  3v 6  5v 3  3v 4 18v 3 17v 5  4v17 16v 4  
 6v 4  4v 5 18v 4 17v 7  6v17 16v 6  5v16 15v 5  
18v 5 17v 9  8v17 16v 8  7v16 15v 7  6v15 14v 6  
10v17 16v10  9v16 15v 9  8v15 14v 8  7v14 13v 7  
11v16 15v11 10v15 14v10  9v14 13v 9  8v13 12v 8  
12v15 14v12 11v14 13v11 10v13 12v10  9v12 11v 9  
13v14 13v18 12v13 12v18 11v12 11v18 10v11 10v18

 

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

1 and 18
2 and 10
3 and 11
4 and 12
5 and 13
6 and 14
7 and 15
8 and 16
9 and 17