This is a re-post of a previous posting:
For residents of Highbury and Islington we have to stress again (unfortunately) that parkrun does not organise charity runs.
Anyone knocking on your doors (a woman called Sophie or Antonia in particular) is not collecting for any run that is organised by parkrun. parkrun only organises free, timed 5KM runs every Saturday at 9AM.
Please consider reporting any such attempts to raise money to the police (call @MPSIslington on tel 101). This happened last autumn but the police were unsuccessful in tracking this person down.
Please let you neighbours that this person is hoax.
Please also see this previous post on Facebook