[Zholl]

The way I've been doing it, which seems to work, isn't incredibly complicated. It's based off the equation [A]^-1[b]=[C]
[A] is the number of matches each team played with each other team. So make each column and row each team number in numerical order. At all of the intersections put the number of matches played by team x with team y. Any spot x,x will be their total number of matches.

[b] is the winning margin margin for each team in a collumn. I believe, and someone correct me if I'm wrong, that you take the average winning margin for this. I'm not sure on that off the top of my head though.

Take the inverse of matrix [A], multiply it by [b], and you should get a collumn with the CCWM of each team.