Cause, if you can measure it, you can make it better.
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Haven't you ever wondered how you are doing on those Sunday night poker games with your buddies? Or, how your overall stats are in Vegas? Unless you've been jotting down the result of each gaming session, chances are that you recall your big wins more than the losses, and your overall stats are different than what you may think. Just like many things in life, if you can measure your gaming stats, you can make them better.