Hi So slow,
Many thanks for the reply. However, I have now heard from the organisers. Disappointing, but never mind.
Apologies for the delay in replying We have a minimum age of 11 to comply with British Athletic Federation rules, and also as requirement of our event insurance. We are also mindful that road running ( i.e on a hard surface) on public roads during delicate developmental age can cause problems in later life - probably this is why BAF set a lower age limit. Sorry to disappoint