This morning I did the workout “Martin”. Going into the workout on Saturday, my projected AI FTP was 352. After doing this workout, it was brought down to my current FTP of 342. The workout coming up on Thursday was changed to “not recommended,” with no new workout in its place. This is following a “recovery/endurance” week. I was surprised by how drastically it changed from one workout, while it hasn’t changed with any of the prior workouts over the past month.
One reason may be how to didn’t match the power targets for the warmup and rest intervals (eyeballing it prescribed was about 60% FTP and you did about 25% FTP). The AI is looking at watts and time (plus other things). Because you had lower watts for those segments of time, you achieved lower AP and NP then prescribed.
If the model is assuming that the reason for doing that is you didn’t feel capable of achieving the prescribed watts, then of course it would lower your FTP prediction. Ignoring the AI’s “thoughts” about why you did that, you did less work. Less work may lead to reduced adaptations and thus lower future FTP.
Do the work that’s prescribed mate.
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How did you rate it? How did that compare to how it expected you to rate it?
Not much we can say regardless unless you share your calendar or supply screenshots of it.
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I would have thought that the active recovery section was more of spin to refresh the legs for the proper working sets. I could understand if it was an endurance zone and was way under that mark. I really took the active recovery as more of a check the box set. It’s odd how heavily it’s weighted.
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I rated it as moderate. The prediction was split between moderate and hard with a higher percentage in the moderate section. The only “challenging” set was final one.
Is that rating consistent with how you’d typically rate a similar last interval? You could do 18 more minutes at sweet spot?
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Just eyeballing it, It looks like you just about got to the end of the last interval and nearly fell off the bike. 
Good effort. 
Not sure it was really Moderate, but that’s up to you. Just saying how it looks.
Given that you didn’t rate it harder than expected, it seems likely that the reduced AIFTP Prediction is a result of the AI reducing your upcoming workload because it thinks you’re overdoing it. We’ll need to see that calendar…
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I would say only the last effort felt hard. I was able to get through the previous work without drifting up in heart rate, kept the cadence steady and felt comfortable though the workout. Typically I do my workouts around 2pm my schedule changed and now I’m starting them between 6-7 am. Did you need to see the future calendar
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Also not sure if I should be rating the workout over the majority of the time or the final interval
If you set your account to Public any one of the smart, helpful people here can take a look. Or post screenshots of your last 4 and next 4 weeks. Or just ask someone from TR to take a look.
Definitely don’t rely on me for advice of any sort! I am so not qualified, unless you need to know how to drive a train. 
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This isn’t intended behaviour…. is Thursday’s workout “pinned”?
For the latest “Martin” workout do you mind showing the power-level table where each zone is scored?
Edit: actually I can see it only scored you 6.2 out of the possible 7.2 for sweetspot - my guess is that the last interval ended up being in the tempo zone rather than sweetspot.
I don’t think the performance of that workout alone is enough to drop your predicted FTP though - my guess is that it’s the knock on effect of having that Thursday workout pinned (assuming it is).
rating the workout overall
https://support.trainerroad.com/hc/en-us/articles/4404884465563-Post-Workout-Surveys
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With a fairly large Y axis range, makes viewing a hair tricky - but I know when I do a workout with little sections in ERG at 1-4% above target and above in recoveries (who wants to spin at <50% lol)…. I get above target workout level score.
When i first looked at this i notice your SS intervals are on target for 1st two, time above and below. But then the 2nd two most all of the time is below or just barely at target. Based on how it reacts to my power over target… got to imagine you got docked on it. Likely if you look at that specific last interval Target Pwer and the Avg Power will be a bit off.
What do you mean by pinned and how do I find where the zone is scored?
if you manually add a single workout, not an ai chosen one or have it working through a plan then the workouts will usually be automatically pinned.
If you want to keep a workout you like you also have the option to select any workout and change it from being ai modifiable to pinned. It would look like this in the upper left corner on your workout on the calendar
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Little question. How did you get the green line in your graphics? Was it a workout in Zwift or outside? Would really love that target power in Zwift workouts
The green line is just the actual target power for a given workout. If you increased or decreased intensity and were using the blue boxes you’d see that a little above or below hte blue which is the prescribed workout target.
Here is a zoomed in on a workout done in TR:
Since he did his in zwift the blue boxes arent’ there and the green line just becomes more apparent. You may need to look at it in the more details view in a browser to see them, I forget how visible they are in the apps.
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To add to your point: they’re consistently under the target power for the last two sets.
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I did check and it is pinned. If I unpin or delete the next workout would the AI fill in that gap with an appropriate workout?
Here is the breakdown for how the workout should have felt
I understand the last set dropped off. It was under the target zone but still in the “approved” power range, according to how Zwift interpreters the zone. I’m more confused at how the ftp projection dropped by 10 points from a single workout that was still pretty on target. All the previous workouts were completed well. There is 1 left before the projected bump. I just didn’t think this workout was failed as badly as was interpreted. If that’s the system that’s the system. Just trying to gain some insight on it.
Also fueling may lead to the last two sets. I did this workout in the morning and only had a banana before hand and 750ml water on the bike after waking up at 6:30