Import of old GPX data -> losing existing data (HR, power ..)

[Robbe_De_Win]

Yesterday I imported a bunch of GPX activities (taken from my strava account via the account retrieval) and imported it into Intervals, because I only had activities from mid 2021 onwards, but i wanted all my data.

I imported all the GPX files until end of 2022. So I knew there would be duplicates. But since duplicates normally don’t overwrite anything, i thought it would save me time instead of figuring out which specific GPX activities i should import.

There werent any duplicates to be seen, but a lot of my old trainings (from 10/2022 and earlier) lost all the data except altitude and speed.

How can I fix this?

[MedTechCD]

GPX usually has no other data then GPS location and altitude. Speed is calculated from GPS data. I’m pretty sure it’s a file format limitation. GPX data is directly readable in a txt reader like Notepad ++ for example. Check what is in there.
You need TCX or FIT to get HR, Power, …
Any other export format on Strava?
Where is your new data coming from? Is it an option to link your Starva account again?

[david]

Uploaded activities will replace ones downloaded from Strava. Thats usually what people want (to get fields not provided by the Strava API etc.) but your gpx files don’t have much in them, only GPS data:

<trkseg>
  <trkpt lat="50.873740101233125" lon="4.705344205722213">
    <ele>36.39999999999998</ele>
    <time>2022-10-04T12:51:30Z</time>
  </trkpt>
  <trkpt lat="50.8736964315176" lon="4.70535728149116">
    <ele>40.60000000000002</ele>
    <time>2022-10-04T12:51:31Z</time>
  </trkpt>

You can see what is happening by ticking the “Show activity source” and “Show deleted activities” boxes on the calendar page:

You can undelete the Strava activities and delete the uploads from the activity list view:

I don’t know if it is possible to get the original fit files from Strava. Thats what you really need.

[Robbe_De_Win]

Huge thanks for the help! I was able to undelete my strava activities and I got the TCX files for the older activities and uploaded them.

Thanks again!