u/harryquelch

A puzzle. Until recently my usual 3-4 mile runs, recorded kcal like this:
5km: 388 kcal
4.8: 380
5.3: 430

But this week my two runs so far have been given kcal like this
4.87km: 65kcal
6.47: 101

I’m at a loss to understand this. All the data: heart rate, pace, etc are comparable. Why has AF+ changed the way these are scored?
I record these on a Garmin Forerunner 735xt. They’re then imported into Strava and Strava is a data source for AF.