How to recalculate stats?

Hi there,
I tried searching and didn’t see a solution already posted.

Back in December I did an indoor bike trainer ride with Zwift where my sensors did not connect properly. At the time I wasn’t concerned about not having all my stats for the ride. However, during the ride instead of recording my power output as “0” as expected, it recorded it as 400 for the entire session.

Now, even after deleting the activity, Zwift thinks my personal best is 400w. It also puts me in pace group “A”. I did adjust my ftp back down to my normal ftp, but having the wrong stats is very frustrating.

Is there a way to recalculate things?


Send this explanation to and they’ll probably fix it for you