Hello, how can I restart/delete my achievements?
I have only ridden like 2 kilometers or so, but with trainer that wasn’t OK. It showed I rode like 600mph… During this very first ride I have unlocked some 15 achievements before I was banned with UH OH message. Now I have new trainer and I want to start over and deserve those achievements.
Thank you. 
I had a similar issue with recurring latency spike - my wattage would drop to 0 for a few seconds and then jump up to 2000! Unlocked loads of achievements but would rather have been able to complete them legitimately.
Yeah. I deleted those wrong traings/activities… That didn’t help. 
As of right now you cannot reset the achievements.
You can reset the power max numbers (1 minute, 5 minute and 20 minute) by deleting the corresponding file in \Documents\Zwift\cp\user*****