I had trouble stopping the measurement on the watch; I had completed 8 km in like 41:20, not in 41:25, as the chart says
this is my like 12-years-low, and I am rather proud of my performance
the “un-calibrated” electronics on my shoe connected to the sports computer at my wrist says the distance was 8.51 km, but the treadmill says the distance was 8.00 km – I will try to use this for the “calibration”