We're often asked how to track a player's maximum score in for each day/week/month. Using a Leaderboard that resets daily/weekly/monthly (see Reset Frequency here) won't achieve this. The reason for this is that when you configure a Leaderboard to reset, the Leaderboard will reset the entries but not the underlying Running Total data. So, if I scored 50 on day one, I would need to score >50 on day two to register a new high score. However, you can make use of Leaderboard partitions to start from zero each day. For details on how to do this, see the Starting Leaderboards at Zero tutorial.