Got a flyer through the door the other day about the annual Hornsey YMCA Crouch End 10K. They're accepting entries now, run is on May 16th.
<a href="
http://www.enter4.co.uk/ymcahornsey/home">Hornsey YMCA Crouch End 10K</a>
Just posted to highlight it as it got full pretty quickly last year, in case anyone wants to take part. Bit noddy at the start (running across the grass in Priory Park not ideal if it's raining), but is an ok course, not too taxing.