It's been a few (7) years since I last competed - planning to make up for lost time

this year.
I always enjoyed the unknown part of a contest, and I've also been told that they have advanced in complexity quite a bit since I last competed - so I'm thinking seeing some examples would be really interesting and helpful.
Is there a list / a library / a catalog / a set of examples / a history / a ???

- of unknown schedules ? I am specifically interested in Advanced - if that matters..
I'm guessing that the figures from the known are a good starting point for what to expect in unknown, but having been told the Advanced unknown is now quite a challenge, I'm interested / curious ..
Cheers,
Bob