Please help me understand Moving NGP

[mlanzi]

Please see the image attached. It was a “Run of the Bike” workout in a flat road. Why Moving NGP is so different from average pace?

[Andrea]

Dear @mlanzi thank you for your message!
I took the liberty to check your session. As far as I can see, and if I get the session right, there were slightly less than 100 meters of elevation gain in 3.6 km. As a consequence, the gradient was not super “flat” That might have contributed to the increase in the NGP you see. At first glance, I would say that that’s why the NGP is higher than the average pace. Would you agree?

[mlanzi]

Hi Andrea, where this 3.6km elevation gain comes from?
See the attached photo from the Garmin section.

[Andrea]

100 Mt of elevation in 3.6 km distance. There might be a meaningful road gradient that can impact NGP.
Would you agree?

[mlanzi]

Ok, I think the problem is in Garmin sensor. I don’t know why it did measure 100mt of elevation. This place is a lake, you can run around the ring and it’s almost flat. See the picture below for the entire ring, it’s 11mt elevation.