Are Park Runs Destructive ?

[OB1]

I might well be at a Parkrun on the 16th as it's my next free Saturday. But it won't be Marple sorry OB1 if I do one - likely Preston again or Burnley.

And here is me trying to organise a chariot to 'race' at the Witton 'time trial' :w00t: on 3rd Feb.