Last night I was at 2922.  In fact my ranking history shows me at 2922.  Yet when I woke up this morning my rating jumped up to 3087 without me completing a game.  Is this a glitch or was their a couple games that I lost where someone was caught cheating?  I know this error is in my favor, but I don't want a score I didn't earn.

Hmmm I'm not sure - it could have changed if you were playing someone who surrendered and you were awarded the win - but I don't see that happened. If there are any discrepancies this will be fixed in the weekly stats refresh.