Thanks - I noticed that my skill line looked really different than everyone else's in the analysis you put together. I should probably try to link to that image in my write-up.
I think the story for that is kind of straightforward. My focus on the last day of the challenge was to make changes specifically for competing against the top bots especially with 5 and 6 player maps.
Those changes made me better when playing against a bunch of players that all try to avoid breaking through borders, but worse on 1 on 1 and when competing against other diamond and gold players.
Also some of my very first games in the finals randomly happened to include @fohristiwhirl and a couple other top players. I had a 6th place finish in one of them, and it took a long time to recover from that point.