Parkrun (styled as parkrun) is the name given to a collection of five-kilometre running events that take place every Saturday morning in fourteen countries across five continents. Each Parkrun territory has its own sponsors. Events are run by volunteers, and participation is free of charge.
Runners are required to register online in advance for a unique athlete number and to print their own identification barcode for use when taking part. Runners’ results in each event are processed and uploaded online after the run by volunteers. Each registered runner has an individual page cataloguing the details of each event in which they have participated. Junior Parkrun (styled as junior parkrun) is a spin-off event which provides a 2 km run for children aged 4–14 weekly on a Sunday morning.