Harrow Lodge junior parkrun
Free, fun, and friendly weekly 2k event for juniors (4 to 14 year olds).
Adults can accompany their children, but the course is marshalled and signed, so isn't strictly necessary.
Register on the website and bring your barcode along to get a time and placing.
Children can walk, jog or run the event.
It's a run rather than a race, so can be taken as seriously as you want.
See the results history on the website to get an idea of times.