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Question

Wrong data from garmin activity and getting flaged

  • October 10, 2025
  • 3 replies
  • 40 views
M
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Hello,
I did some hill climb repetition yesterday. The data is correct on Garmin: 8.51Km at 6:18/km and 236m ascent and a duration of 53min34. Everything is fine on my watch and on Garmin connect, but apparently not on Strava. Strava only pull up 8.51 for a duration of 6s, which got it flagged, obviously.

It’s the first time I have an issue with an activity imported from my watch, the treadmill flag is off, and I don’t get why Strava is not importing the correct data. 


Any idea what could go wrong? 

Here’s a link to the activity, if that helps: https://www.strava.com/activities/16083789430

3 replies

Jan_Mantau
Superuser
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  • Jan_Mantau
  • Superuser
  • 1782 replies
  • October 10, 2025

Maybe there was something wrong with the GPS data. You could try to export the tcx from Garmin Connect and upload the file to Strava.

M
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  • Mehders
  • Author
  • Hub Rookie
  • 1 reply
  • October 10, 2025

I tried importing the .fit and .gpx but got the same issue. Could importing the .tcx resolve that ?

Weird thing is that everything is correct on Garmin connect...

Jan_Mantau
Superuser
Forum|alt.badge.img+26
  • Jan_Mantau
  • Superuser
  • 1782 replies
  • October 10, 2025

Then the tcx probably won’t fare better. Maybe you can check the files with other services or viewers, there must be a reason that Strava interpretes them this way, like wrong timestamps.


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