Help- Yesterday in the Chicago Marathon, my trusty Garmin 220 was measuring distance very strangely. The total time was correct but my pace is 10:30 +/- and it said for the first 3 miles that I was running sub 6 mins, then bumped up to the normal amount then back again to a super fast pace that I am incapable of.
It is set on miles, not kilometers. I have never had any difficulty like this and didn't alter settings. Help!, please. Joy
