I noticed at the bottom of the activity graphs in GC on my phone (not there on the web) there is a run/walk graph. It seems sort of pointless, as the pace graph and others will show where I was running and walking. This field doesn't show up on previous runs using the F6xPro.
It also doesn't work right - notice from the power graph I was running the first 6 minutes, and it shows it as walking. At the end of the first walk section, it got synced up. Also I think it would make more sense if the running sections were taller than the walk sections.