Race day. Garmin 955 reported I ran about 5.6 miles , however - erm.. i finished the full 10k. The GPX uploaded to strava shows the correct distance.
Listen , how can this be so bad? This is a runners watch. I was pushing way harder than i required to at times. I do not use 3D distance etc.
I honestly don't know if i'll get my next watch as Garmin.