Filters on leaderboards?

There are multiple filters available for the leaderboard(s) that can be used in isolation or collectively. Here is a list of the available filters and their purpose:
1) Player difficulty level - This allows you to see how each player is ranking by star level.
2) Challenges - This allows you to look at the players single best score for any individual challenge.
3) Time period - Used alone this filter will show you players total trophies for your chosen time frame.

All filters work on a team view meaning you can compare how your team are doing against one another. The global leaderboard reflects the very top selection of active players within the app and is also responsive to the filters applied.