Is it possible to change km to miles on previous runs. Changing the settings to miles doesn't change the laps, eg, a 10k with 10 1k splits doesn't change to 6 1 mile splits (plus a bit), it's still 10 splits of 0.62 miles each.
Thanks
10k with 10 1k splits doesn't change
In your example did you have your watch configured to auto lap at 1k?