Quote Originally Posted by Cinco View Post
For 1.) the likely cause is that the players who left early already recorded this score. Gauntlet scoring is not cumulative; only your highest score is recorded. Therefore if the players who left early had previously reached 70th wave (or thereabouts) on an earlier run their scores would not be changed by leaving at the 25th wave - as the more recent score would be lower than their best score.

And for 2.) we've removed this to make room for a future addition: Badges! A new way to distinguish your character with specialty icons that are awarded for Event participation and special challenges.
If the players who left event earlier had already recorded the score, then it could not match 100% with the players who stayed. This has already happened 3 times and each time the players who left the event receive the same score as the remaining ones, even if they were not previously in the leader board.