On a couple of occasions the Edge has appended the days ride to a previous days ride for no good reason. The MotionBased forum has suggested that it is the user not pressing stop at the end of the ride. Now I always press stop at the end of the ride or at a Cafe stop so that didn’t seem to be the reason.
Last night I went out for another ride. Looking at the distance still being 59 miles from the other days ride it finally struck me as to what was going on. The GPS system relies on accurate timing. As far as I know the Edge has no internal clock. When you fire your Edge up from cold it has to aquire all this information from the satellites.
Now I can get a bit impatient waiting for it to aquire the satellite and this I think has been my undoing. Pressing start before the Edge has aquired the satellites leads it into thinking the data is going to be appended on to your last ride. The Edge doesn’t know the time yet as it is still trying to locate the satellites for your position.
The answer to the problem is wait for the Edge to locate the satellites and then press start to log your ride. It’s far easier to wait that extra minute than uploading your ride into Sporttracks and splitting your ride in there and exporting it back into the TrainingCentre or MotionBased.