In reply to Hat Dude:
> Off topic but I used to do the local Parkrun and there was a woman who used to run with a foxhound on a waist belt
> I've never seen such blatent cheating, the dog was constantly striving to be at the front of the pack so all she had to do was keep picking her feet up and gthe dog provided all forward momentum.
I don't think you understand how hard it is! It's a sport all of its own called canicross. If I haven't canicrossed for a while, my thighs and abs are agony after. The impact on your body is much higher and your legs are forced to move quicker than you naturally would. Yes, it will look easy if you do it a lot, but so does anything.
It's only cheating if it's a race, which I believe park run is not meant to be at all!
I don't do park run, the only group stuff I do is with local canicrossers, but I believe doing park run on canicross is quite common. You will also find that many of the Strava segments are topped by canicross. It's not our fault if they don't give the option to record it separately! I got a CR today on a segment (pushed a fellow canicross runner off the top spot), there's no way I would if running solo.