Heh! In all seriousness I reckon it would be ok as long as I'm not troubling any prize categories, and my result would look relatively obscure in a strong field. Or I could run 12 and a bit laps of Dulwich Park as fast as possible.
12 and a bit laps of Dulwich park sounds almost as bad as 25 laps of a track. At least on the track your distance markers remain the same rather than getting closer each lap at Dulwich.
Anyone who is aiming for 72 minutes so as not to cause any issues with positions and awards....
Osterley parkrun is currently on, which is remarkable.