Rating changed without any submission

I have not submitted any accepted solution for August cook off. But my rating has reduced. Is this supposed to happen? Can someone please look into this?

Even if you submit a Wrong Solution during the contest, then it is considered that you took part in the competition and hence the rating change.


I’m not on the rank list… That’s why I got confused.

Yep you don’t get a tank unless you get atleast partially correct answer, if you don’t have any score you don’t die up on tank list, but wrong submission means you participated in the contest and rating is recalculated.
Happened to me twice.