Only regarding the Classical section (14 games) and resolves after the first 5 decisive results or the end of classical section (whichever happens first).

Each win is 20%, the remaining % is split evenly so

0 - 0, 1 - 1, 2 - 2=> 50/50

1 - 0, 2 - 1, 3 - 2 => 60/40

2 - 0, 3 - 1 => 70/30

3 - 0, 4 - 1 => 80/20

4 - 0 => 90/10

5 - 0 => 100/0