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How come when I lose a lot, my level goes up?
Moo
You should really read the experience/leveling faq which is linked in your profile page.To summarize, you will lose less experience per loss and gain more per win if you are at a lower level, especially if your opponents are higher than you in levels.
your 170+ games of hardcore that you have lost are really skyrocketing your level.
Sorry, but I'm deranking and my level often bounces UP and down.