Hello,
I just ran a marathon, and my Garmin watch measured 42.067km.
I uploaded the activity to Garmin Connect, and I can see a bug: Garmin Connect displays 42.7km.
From what I understand, Garmin Connect rounded-up 42.067 to 42.07 (which is fine), but then 42.07 became 42.7.
Weirdly, the split by segment is correct, I can see the last segment worthes 0.07km (cf. attached image), or 0.067km depending on the platform.
This bug is present on the three platforms: Connect online, Android app, iOS app.
Consequence is that average speed is erroneous, which is not nice when we want to compare similar runs.
Thank you