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§5.3 Clarification — do internally calculated metrics (CTL/ATL/TSB) count as "derived from Strava Data" for AI use?

  • June 1, 2026
  • 2 replies
  • 60 views
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New API Policy §5.3 prohibits using Strava Data in AI, 
including data "derived from" Strava Data.

My app calculates CTL, ATL, TSB from activity summaries 
via my own algorithms. Raw Strava fields (HR, power, pace) 
never reach any AI model - already removed.

But when I send "CTL=62, compliance=80%" to an LLM for 
coaching advice - does that count as "derived from"?

This likely affects every training/coaching app using 
the API. Clear on raw data. Unclear on calculated metrics.

Artur (Client ID: 186368, Motus)

Best answer by Cyril

Yes your calculated metrics are ultimately derived from Strava data.

2 replies

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  • Cyril
  • Hub Explorer
  • Answer
  • June 1, 2026

Yes your calculated metrics are ultimately derived from Strava data.

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  • cmanos
  • Hub Starter
  • June 1, 2026

Yes your calculated metrics are ultimately derived from Strava data.

which is ultimately derived from garmin or coros

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