Hi there!
Thanks for reaching out.
Then you’d need to use event results. Each match would be a third of the actual event.
Think about it this way, in soccer, we have two halves. The total goals in the end are just the sum of each of the halves.
In your case, you’ll have only one “goal” available per third: the winning team. So the winning team will have 1 as its points, and the losing team gets zero. Then at the end of the 3 rounds, you can sum them and get the winner (most thirds won).
You can add other stats as well, in case you want more details. But the “thirds” would be what defines a win in your case.
Let me know if it’s clearer now.
Thanks!