Why is my zFTP on zwift feed different from my zFTP on zwift power and why are both lower than my 51 minute power?

General Discussion
1

Why is my zFTP on my zwift feed different from my zFTP on zwift power and why are both lower than my 51 minute power whilst the zwift site calls zFTP an “Estimate of your current Functional Threshold Power (FTP), the power you can sustain for a long period of time, i.e. > 40 min.”

I am guessing the latter could be due to zwift/zwift power’s estimate of my anaerobic contribution to my 50+ minute power but that isn’t clear from the description on the zwift site more curious why zwift and zwift power zFTPs are different

2

zFTP is a modelled number based on a couple of (assumed) maximal efforts in the last 90 days. Basically, it’s critical power.

If you refresh your profile in Zwiftpower it should pull your current zFTP in from Zwift.

:+1:

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3

Oh okay, refreshing did it

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