Interestingly, I spoke to a coach recently about the indoor/outdoor FTP difference and they always set two when they set up an athelete for 1 to 1 coaching because they are often so different.
Yet TR doesn’t recognise this as being a worthwhile thing.
Yep, my Coach had different FTP’s set up on WKO (for TrainingPeaks). They were 20-25W different. Intervals.icu also allows separate indoor and outdoor FTPs.
This is my main (maybe only) issue with TrainerRoad and the reason I didn’t join it before.
I have a power meter on my CX bike and I think with all the power spikes, short race duration and high RPE this actually confuses TR. I had AIFTP want to lower my FTP during the season went I was feeling good and completing workouts, this was why I took the 20 minute test.
Other than that I think for training AIFTP is close enough before it got confused by my races.
I do most of my training on the turbo and don’t know how training outside would effect it.