Tracking of Event Leaderboard (Top 100) Master Scores - Legendary, Epic and Rare (15 stages)

Here is the thread that tried to do what you are asking for:

But the information is quite outdated. Also, some of the screenshots are from the beginning of the event so the rank they had on day 1 would be much lower on the last day.

I can only help with the master scores of the Top 100, not with the scores per stages.