Leaderboard, how do I get the topscore from diffrent category?

Hi!
I want to make a leaderboard and show of who got the top score in what category.

Tabel1 looks like this:
Name | Category | Score | Date | Posted | ID (unique)

And there is 5 categorys, so how do I get the one who got the top score from one category and where the score is the oldest one, becuse they can get the same score but I want the oldest one to still be the leader of that category. Hope you understand.

Highscore.xlsx