There are different kinds of Memorang leaderboards that you can get on. On your dashboard, you'll see a leaderboard of users who've studied the most facts, and how you stack up!
Additionally, every study set has a leaderboard tab:
These are the Memorang users who have studied the most facts in this set.
If you open a study set in any of the game modes, you'll also see a leaderboard:
These are the high-scoring Memorang users on this particular set in this particular mode. Don't see your name? Time to start playing!