it's nice to see such data but, honestly, it's quite easy to fake it. I'm mostly a trailrunning, so long and easy runs are the norm. Last weekend I run a flat 10k, almost flat out and it was WAY FASTER than my usual runs.
If your fake your weight you can "improve" this chart also, and if you use wrist HRM then all relative performance would be completely wrong (it's not so reliable).
I have no idea what my VO2max. is