Killer: It's not a best of 5.

You have 5 matches to play per person. You don't have to play all of them, it's just the maximum. Although it makes more sense to play all of them because you get more points.

Each individual match counts for points. So each match you win out of the 5 counts for 5 points, and each match you lose counts for 2 points. So if you don't do all 5, it's just a waste of points. You get more points if you play all 5.