While I think I am running at the steady pace, when looking at the speed/pace graph, one can see pretty regular pace variation in cycles of 400m in length.
Is it a recognized pattern, that a regular periods would appear?
OK, I'll bite:
You are running on a track and there is a steady wind from one direction.
HM0145 said: one can see pretty regular pace variation in cycles of 400m in length.
Interesting. Are the patterns the same/correlated on both apps? Is the pattern the same on different days? Or for different runs/workouts?
hm, there seem to be regular waves at garmin too ..