Why isnt FTP automatically adjusted

Took my first FTP test one year ago, I got a 249. Took the 20 min short test again tonight and got a 267. When checking Zwift after the ride I realized Zwift has another 20 minutes section of a ride registered above FTP , showing 281. Shouldnt such an effort automatically adjust my FTP to 281? Is there is a say to find fhis specific ride without checking manually all of the rides for the last 12 months?

FTP is 95% of your best 20 min effort.

so 281 x 0.95 = 267w FTP

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Thanks :slight_smile: Forgot there is a calculatuon invilved.