I did the 5km park run today. Sadly your "pause" trick, for 2 minutes, but it didn't work for me.
The watch reported 4.67km, while my 2nd device said 5km.
After 4:30 minutes in, it said I had done 0.45km, even though I'd done about 0.85km off
Looking at the GPX data I've come to 4...