No idea but it's pretty stupid. Yes, very stupid. Using goal-differential makes sense, but having goals scored over head-to-head is dumb. Personally, I don't even like that. Should be H2H, then GD, then GS. I don't have time right now to look at a bunch of leagues, but in the top leagues, the EPL doesn't use H2H at all (it's GD, GS then a playoff), the Bundesliga is the same as the World Cup, Serie A goes H2H, GD and La Liga goes H2H, H2H GD, H2H GS and then overall GD. So it seems like it's split there. Agree. I actually meant to say "makes some sense." It should be head-to-head first. I thought there might be some historical reason that I don't understand. Barring that, H2H should always be the first tie-breaker.