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Merge activities - keep power data

  • May 10, 2025
  • 6 replies
  • 162 views

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  • Hub Rookie
  • 5 replies

Hello,

I manage to merge two activities using third-party tools, but when I do, I lose my power data.

Is there a way to merge activities whilst keeping the power data?

Best answer by arc88

GPX doesn't store data for power. If you are a gotoes donor you can combine and export your original FIT files and preserve all the data streams. Fitfiletools may be able to do it also. 

6 replies

Vincenzo
Superuser
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  • Superuser
  • 264 replies
  • May 10, 2025

Ciao ​@TijR. Have you ever been able to see on Strava power data when uploading just one activity?


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  • Hub Rookie
  • 5 replies
  • May 10, 2025

Hi ​@Vincenzo. Yes, I see the power data of each individual activity. But when I merge them into 1 gpx file, there are no more power data.


ActivityFix
Superuser
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  • Superuser
  • 294 replies
  • May 10, 2025

What tool(s) are you using to merge the activities together?

When you say merge two activities, are you talking about merging the same activity recorded on 2 devices to combine the data streams, or do you mean merging 2 activities back-to-back to create a longer activity?


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  • Author
  • Hub Rookie
  • 5 replies
  • May 10, 2025

Hello ​@ActivityFix, I mean the second. I accidentally stopped and saved my ride before I was done. Trying to merge the two parts into 1 activity now.

Tool: I was trying 2 different tools, Gps Track Tools and Gotoes for Strava. I was merging GPX files, maybe I have to try a different type of file?

What tool(s) are you using to merge the activities together?

When you say merge two activities, are you talking about merging the same activity recorded on 2 devices to combine the data streams, or do you mean merging 2 activities back-to-back to create a longer activity?

 

 


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  • Superuser
  • 116 replies
  • Answer
  • May 10, 2025

GPX doesn't store data for power. If you are a gotoes donor you can combine and export your original FIT files and preserve all the data streams. Fitfiletools may be able to do it also. 


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  • Hub Rookie
  • 5 replies
  • May 11, 2025

Thanks a lot for your help all, I was able to fix the problem thanks to you 🙏