It seems like GAP on Intervals uses the same model as Strava, correct?
How come the values do not match then?
A recent example I have is from this week, where I did a 6 km run, by the water, meaning completely flat surface.
Strava shows a total elevation gain of only 10 meter over the 6 km run. Pace 5:47 and GAP 5:46. The same activity on Intervals is showing Pace 5:47 and GAP 5:11 with a gain of 356 meter.
Recorded on a Garmin 965. The exercise data is uploaded directly from Garmin Connect app to both Strava and Intervals.
What is the result in the Total Ascent field on Garmin Connect?
There are 101 methods to calculate elevation depending on the settings and the accuracy of barometric sensors. If baro-pressure is not used (because the device doesn’t have a pressure sensor or because it isn’t working correctly anymore), elevation will be calculated by data from online available maps. If GPS reception was mediocre during the activity, you get elevation data from points next to the road iso points on the road.
The GAP algorithm in Intervals is the same as the one from Strava, but almost surely, the platforms don’t use the same online maps.
If your device has a correctly working barometric sensor, the above setting should be set to Accurate Elevation = Yes and ‘Use Elevation Correction’ unchecked.
