In order to see your game statistics, go to your Profile. To do so, select the option on the upper left corner of your main screen, where you will see your avatar. If you have your account linked to Facebook, select your profile picture next to your username.
Once you enter your Profile, you will find information such as your username, country, number of friends and records (best game, top play and longest word).
You can also see your won, lost and resigned games.