20 min FTP test in Zwift

Tomorrow I’ll take a 20 min ftp test. Usually I have been doing the 20 min test in Zwift based on the test from Zwift, however perhaps it should be the workout from TR instead? and pros/cons?

In Zwift the 20 min segment shows your avg power, to help pacing. Any of you know if that is also the case from the TR FTP test if you do that one in Zwift?

Thank you

On the iOS and iPadOS version you can swipe to get per-interval statistics, including interval average power, cadence and heart rate.

Would love to schedule the workout done in Zwift though. But I assume it will be something zwift specific feature so guess I’ll select the Zwift 20 min test if noone knows :slight_smile:

If you want the FTP results to show up in TR for the system to use it, use the TR test.

Other users have used the Zwift ramp test or 20 minute and it’s just viewed as a workout not as an FTP test.

You can probably schedule the TR test in your calendar and it would show up in Zwift.

Then you’d be using Zwift’s workout player. Never having used Zwift, I don’t know whether you’d get that average.

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It does thanks,

So my question is if I schedule the TR FTP test in Zwift, will I get my average during the 20 min effort, just as if I do a 20 min FTP test? Just like here where it displays 233w average on a zwift ftp test:

Will there be any “benefits” of doing the TR FTP test and have the system use that over the Zwift test? Using AI FTP so guess it doesn’t matter?

I guess the only benefit would be that both Zwift and TR recognize their respective FTP tests and set the FTP based on them automatically. I’m not sure the AI would by itself figure out that a workout followed a FTP test protocol and adapt the FTP.

But that also doesn’t mean that you can’t just do the Zwift FTP test and set your FTP in TR manually afterwards to the calculated value. Possible negative effect might be that Zwift and TR AI have a different understanding of FTP (Zwift (I believe) closer to the traditional interpretation, while TR AI sees it as the level of power you can confidently do a lvl 3 Threshold workout at). Might be that future TR AI workouts don’t quite match what the AI would have selected without the manual change.

As for for the overlay, I guess the only way to know would be to test it (you don’t have to actually do the test, just get to the part where the overlay usually appears), but I’d expect this to be a feature Zwift only shows in its own „proprietary“ tests and not for what’s just a regular workout from Zwifts view

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Thanks I just tested now loading the TR test in Zwift and skipped to the actual test part. I can confirm there is no overlay (exactly the word I missed :sweat_smile:) of avg wattage so I’ll go with the Zwift test.

AI FTP is good and correct for training I guess, but also nice to do a real test sometimes. Ofc if I hit exactly what AI claims, there is really no need :sweat_smile:

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Hey @JanK :slight_smile:

Is there a reason for completing the FTP test? hehe.

If you are doing it just to test, then that’s great. You can do it on TR or on Zwift.

If you complete it on Zwift and would like to apply the value that you get, then you’d have to do that manually like @martenk mentioned. A good point made as well, is that AI FTP Detection does not predict the result of a ramp test, so we wouldn’t be comparing apples to apples here as it’s based on your power data.

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Hi Caro,

Only reason is to prove to myself that I have become better since my last test 13/12-25 :smiling_face_with_sunglasses::folded_hands:

Great. If it was me, I would just do it Zwift and call it good and expect TR AI to simply take it in as an unstructured ride. The WX has been uncharacteristically good here so I’ve been doing a lot of unstructured rides instead of plan workouts. AI seems happy to digest those and adjust FTP, predicted FTP, and adapt the plan accordingly.

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Just a heads up, if you do the 20 min FTP test in TR at the end it will give you the typically calculated 95% FTP and ask if you’d like to update your FTP. By doing this, it removes you from the “AI FTP program” until you opt back into it.

As an example, my AI FTP was 300 watts last week. I did an 20 minute FTP test and held 311, which re-calculated an FTP to 295. Doing this excluded me from AI FTP updates/predictions until I opted back into it. I opted back in and it automatically changed my FTP back to 300, with an AI FTP prediction this Saturday of 316 watts. Considering I could only hold 311 watts for 20 minutes, obviously the AI FTP isn’t intended to be your one hour power, which TR has been transparent about.

I’m going to stick with the AI FTP for my workouts, because it appears that TR would rather show a higher AI FTP number and give moderate level workouts they can increase over the 28 day range, vs going based on the 20 minute test calculation FTP.

As to why someone might do an FTP test.. Well, with TR changing calculations on how AI FTP is determined, we have all lost the objective measurements of our fitness based on that value compared to what our pre-update numbers were. Doing occasional all out power tests at different interval lengths, while attempting to keep all outside variables of the effort the same, are going to be the best objective measurement of progress as opposed to the AI FTP numbers..

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Sound great. I’ll go with Zwift. The. It’s also the exact same test as last time :+1:

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Nice! hehe

there’s an ‘avg power’ field visible on the third lower page of the TR workout player too, that could work?