League and round-robin fixtures for 12 and 16 teams

Combining 12 and 16 teams

 

The table below shows teams in a division of 12 which have fixtures opposite teams in a division of 16

12 team 16 team
   
1 9,10,16
2 11
3 12
4 13
5 14
6 15
7 4
8 5
9 6
10 7
11 8
12 1,2,3