Hey @bheegaard, 
Thanks for your post. I've not seen this before; hopefully some of our community members can point you in the right direction to find out what app or plugin is used for this data. 

Not sure what app that would be coming from, but you could probably just post a comment on their activity asking them.  

Google says it should be riduck.com - never tried that (not a cyclist) but it seems it's doing this kind of automated Strava updates