SMG Studio

I get getting up a rank then loosing it, is this based on W/L ratio or what?

Idk but it definitely seems like losses overpower wins

It's an elo rating. So win loss ratio is not that important it's just about getting good finishes (first as well as second and even third in larger games) while avoiding bad finishes. Also try to play higher ranked opponents as you will get more rank points from beating them and lose less if they beat you. Elo is used in chess and is more like a power ranking than a simple win/loss record.