Explanation of hrTSS/tTSS/TSS

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  • #75318
    Amanda Woodtke

    I am noticing my planned workouts have a designated TSS, and when my workouts upload, they have a hrTSS or a tTSS. What is this score? How is it calculated and what does it mean if my recorded score is higher/lower than the planned score?

  • Moderator
    Chantelle Robitaille on #75335

    This is a bit too complex to answer in a forum post, but there are good explanations on the TP website.


    What you are calling a “desginated TSS” is actually an estimated TSS that TP calculates. After completing your workout, TP will assign a score in either TSS or hrTSS (and you can toggle between these). Everything in TP is benchmarked against threshold pace or HR. When you see TSS as a score, that score has been given based on your threshold pace/speed, when it’s hrTSS the score has been given based on your threshold HR.

    If you have not set anything as your threshold pace or HR yet (or for those on a Base plan who will not be setting these), the numbers you see are pretty meaningless as there isn’t an accurate number set here and therefore it’s an inaccurate representation of how hard your workout was.

    On our 3rd call, we will be diving into some of these metrics- what they mean, how they are calculated, how to use/not to use the info, etc.


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