Can someone explain something to me

So just flicking through the esports standings and TSM didn't get through but i don't get how seen as RNG and TSM both went 3-3 and that in other groups - - the top teams played 7 games where as in group D - - the top teams only played 6 so i fail to understand how this works anymore and is there a chance that TSM can advance or am i missing something
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