It's the GPS on your phone. Same happens to mine and friends of mine. Really fucking annoying. After working with the Strava guys I've decided the only way to solve it is to dump a load of cash on a Garmin, something I am unprepared to do.
@FixedCheese started
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It's the GPS on your phone. Same happens to mine and friends of mine. Really fucking annoying. After working with the Strava guys I've decided the only way to solve it is to dump a load of cash on a Garmin, something I am unprepared to do.