I have seen in some of the rides that you can put yourself in to a grading for example A B C D. For myself I would be in D as I reckon I can average 2.5 without going over my threshold. Going up to C 2.5 - 3.2 I would get dropped so not a good idea.
I was wondering, If Zwift knows you average say 3.1 does it prevent you from going in as a cat D? Or can you go in if you like? Also if I start to average 2.8 will I be not allowed to go in any cat D events?