Submitted several times in the past but for what it is I don't think you'll find a better freebie.
All you need is your barcode!
Free, weekly, accurately timed 5k runs/jogs/races for all.
The runs take place on a Saturday morning (junior runs take place on a Sunday).
parkrun organise free, weekly, 5km timed runs around the world. They are open to everyone, free, and are safe and easy to take part in.
These events take place in pleasant parkland surroundings and we encourage people of every ability to take part; from those taking their first steps in running to Olympians; from juniors to those with more experience; we welcome you all.
Additionally you can collect milestone t-shirts for runs/volunteering roles.