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Highly inacurrate beginning run speed

3502159
over 1 year ago

Hello,
I've been facing a consistent issue at the start of almost every run. I am using the most accurate gps option, wait till I get a green circle, then press start. At the end of the run, the top speed is recorded between the first 1-3 seconds and it is always absurdly high, like 1:40 min/km, 2:20 min/km, pace I am not even capable of. Then it cycles through various paces that are still too high, until the reading finally settles at my real pace 20-40 seconds into the run. Any idea what could be the issue here?

Thank you

  • 0 over 1 year ago

    Looks like what happened to me. link

  • 0 over 1 year ago in reply to DaKo

    Hmm, seemed to be a one time fluke in your case. For me, it's been happening for months through multiple updates :/ 

  • 0 over 1 year ago

    TL;DR the green GPS ring is a lie, wait for pace to settle to 0:00 before pressing start.

    Yeah this has been a general problem with Garmins for years, ever since they improved the time to get a GPS lock from minutes to seconds. If you look at the GPS track in the situations you described, I bet the first part of the track is a squiggly line (as opposed to the straight line you probably ran in real life.)

    The problem is that when the GPS ring is green, you don’t necessarily have a lock yet. If you stand still and look at your pace before actually starting the activity, you’ll see that the pace is constantly changing (cycling through crazy high speeds, like you described.)

    What I always do before pressing the start button is wait for the green GPS ring and wait for the pace to settle to 0:00. It can take anywhere from 30 seconds to a couple of minutes for me, but if I don’t do it, the beginning of my run will be messed up, like you described.

  • 0 over 1 year ago in reply to FlowState

    I'll definitely give your method a try, I suspected I might have been launching it too quickly, I never noticed the pace change before pressing start, I'll focus on that.

    Thanks man

  • 0 over 1 year ago in reply to FlowState

    That is interesting. I always start directly when it hits green. Never had a problem besides that one occasion. Maybe I have good GPS coverage here, so an instant lock? I hope this solution works out for TS

  • 0 over 1 year ago in reply to DaKo

    I live around tall buildings, so that might be a factor