This is the first book to take an in-depth look at parkrun - the free, weekly, timed 5km run on a Saturday morning - and to examine why its participants love it so much and why it has been such an astonishing success. Author David Hindley - a self-described 'middle of the pack' parkrunner - draws on new research, including interviews with other runners, volunteers and organisers, to shine a light on the unique combination of ingredients...