Hi, your whole standing screenshot below explains how there was an ex-aequo among 3 teams and not 2 teams.
So,you have to consider results among you and other 2 opponents,excluding matches vs the leader .
So: each of you has 6 points in direct matches ( 2 victories and 2 defeats).
Pata has a +1 score, Tatransky has a 0 score, while you have a -1 score, that's the order for place 2,3 and 4