Runner Guy Shepherd changes his shoes at a crew stop on mile 87 before sunrise during the Centurion South Downs Way 100 ultramarathon along the South Downs Way at Firle Bostal, near Lewes, south of London on June 9, 2024. The Centurion South Downs Way 100, is an ultramarathon, predominantly off road course, covering a distance of 100 miles (160,9 kilometres) and that takes the competitors along the South Downs Way from Winchester in Hampshire to Eastbourne in East Sussex. (Photo by Ben STANSALL / AFP)