what is a Leaderboard?

Go to Left Menu Leaderboard  

The Leaderboard shows the name, score, region and highlights your ranking in orange. You can choose to see the leaderboard for last quarter by tapping on the <Q3, 2017 button on the left towards the top of the screen. You can also choose to see the All Time Leaderboard covering all quarters in a year by clicking on the All Time button

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