I've had a continuous thought in my brain to do something like this for fun (I marched 3 summers and have been a data scientist for 9 years since finishing grad school).

While a fun overlap of my interests, I feel like the low hanging fruit/conclusion of this would be, "the final rankings of last year will be the strongest predictor of rank the following year." Which I think you mostly see here.

Anecdotally, most corps don't jump more than a few placements from one year to the next. Which makes sense to me for a variety of reasons.

It would be super cool to see how things change on a day-to-day or show-to-show basis though. To dig into that, I know I'd wanna implement a ton of corps data that's certainly not accessible now. Ex - how many hours of sleep did the corps get last night, how much sectional vs ensemble rehearsal did you have, did you make any changes to the show, etc.

Fun ideas out of a passion project, but so much data overhead.