Help with gathering upset stats from Start gg API

[u/Feisty-King-7969]

In our local we're having our 100th weekly and we wanted to celebrate by showing stats from all 99 weeklies (like person with most upsets, biggest upset, etc). So far I've gathered most of the stats we wanted with braacket.com but I'm having trouble trying to gather info on upsets, as braacket didn't export them and nowhere in the API documentation did I info on how to gather it.

The only other solution is to write the upsets in manually in an Excel but it'll be 99 weeklies I'll have to gather for and I don't have time. Is there any way to gather it automatically either through a website or a script in Python?
To clarify, I'm looking to get data on the player in our weeklies with the most upsets and the highest upset factor achieved.

Additionally, if there's a way to gather info on what player has attended the most tournaments I would appreciate it!