Free weekly timed 5K runs with parkrun

parkrun organises free, weekly, community‑led 5km runs and junior events across parks in the UK, open to everyone regardless of age or ability; all participants must register once online (free) to receive a barcode to record times. Events are volunteer‑run and free to join, you simply register at the parkrun website, print your barcode and turn up at any listed local event — no membership fees or prior experience required.