Trainerday or Intervals FTP?

[Sam_Bennett]

Hey there. I did the TrainerDay ramp test this morning and based on the results TrainerDay calculated my FTP of 283w. When the workout uploaded to Intervals, Intervals calculated 271.

Which do we think is more accurate?

[Gerald]

Trainerday uses the 0.75 of your average power for the final 1 minute. Unless David has changed this, Intervals uses the best 3 minutes to estimate your FTP (see the link below to a post by David).

Ramp Test and FTP setting

Tx. That is somewhat fortunate. You are supposed to take 75% of the last 1 minute of the ramp test or something similar. Intervals.icu will just be looking at the avg power for the last 3 minutes (or whatever you have set as your min eFTP estimation time). So sometimes that will work out, maybe not other times. I have a long outstanding todo list item to recognise ramp tests and interpret the data appropriately.

[david]

It is as @Gerald says. Intervals.icu doesn’t interpret a ramp test specially so you should go with the TrainerDay estimate.

[Nik_Om_Cinderella_Ri]

FTP test hurts too much. 🫣