Quite confused, I followed all of the workouts bar one with a stomach bug and added a couple easy endurance rides. Every workout I either met or exceeded the power targets and rpe stayed steady to where the prediction said it should be, yet after every workout the prediction dropped. Starting at 254…

Yes - that would be great!. I think that It might have happened again today - after I completed the prescribed over under workout, rated it hard (as expected) and I think the expected FTP dropped (could be I’m misremembering the previous and didn’t drop today)

The more I use Trainer Road, the more I am getting convinced that the FTP prediction is just a gamification of the platform. It’s main function is to keep you hooked in to training with in the system. I am not sayng this to discount the value of the training, I actually think Trainer Road does a goo…

Is this bug only for outdoor workout or also unstructured outdoor rides? After an unstructured outdoor ride my prediction went up and showing a 7 watt increase. Prior it was showing a 2 watt increase which is much more realistic.

So, mine dropped with perfect (or so I thought) compliance. Posted elsewhere about it. But I did rate some VO2 and anaerobic intervals as hard and did many of them outside. But did not miss or fail workouts did no added workouts. So I would accept a range in this scenario: I follow the plan perfect…

I believe that the bug only affects Outside Workouts. Keep in mind that unstructured/unplanned riding will likely still affect your upcoming training, so it doesn’t surprise me that your prediction might change after logging an unplanned/unstructured activity. :+1:

I just replied to your DM. :closed_mailbox_with_raised_flag:

I’m having the same issue. I’ve come to accept that it is what it is and there’s not much I can do to change it. It’s certainly frustrating. For instance, I’ve had perfect adherence and rating of workouts, but now that I’m missing one sweet spot workout at the end of my first block of the plan, I’m …

Feels like a RNG doesn’t it :smile:

Hi @eddie is this outdoor bug more thoroughly documented in another thread or elsewhere? I suspect it’s affecting my experience also so I’d like to know more. Thanks.

FTP prediction dropped from from +11 to no change the day after my last workout of the block

TrainerRoad Software

eddie April 24, 2026, 1:42pm 42

It sounds like Zwift workouts are not treated like outside workouts.

They should be handled the same way as indoor TR workouts.

Coaching review requested: Why is FTP prediction near 0% by the end of the block?

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FTP prediction dropped from from +11 to no change the day after my last workout of the block

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FTP prediction dropped from from +11 to no change the day after my last workout of the block

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