Hi everyone
When I save an activity as a course, the distance shown on Garmin connect changes significantly - the last one was 10.08km on my 810, and as an activity, but now it is saved as a course it is 13.23km.
Which one is correct?
And why such a difference?
It's pretty important as I'm measuring a route for a race to be sent to the ITRA.
Thanks in advance for the help :)