Are you better than your favorite Hearthstone Battlegrounds streamer?
Take a screenshot (Button on + volume up) of your Hearthstone Battlegrounds Full Stats screen and see how good you are.
Statistics are based on an estimated average of 4 tavern upgrades per game.
You can also take a picture of your PC monitor directly from the app, and see the statistics of your favorite streamer. They often display their full stats screen on Youtube and Twitch.