Sussex Downs Trail Run 2026

The Sussex Downs Trail Run begins at Plumpton Racecourse in Mid-Sussex, within the South Downs National Park. This trail running event offers 21K, 15K, and 10K options, allowing participants to select a route from a shorter off-road run to a half-marathon distance. The event includes chip timing, marshals, first aid, and on-course refreshments. Each route commences with a 3.5K stretch through trees before ascending to the South Downs Way. Higher sections provide expansive views of the Sussex countryside, with Seven Sisters Country Park visible and the sea in the distance on clear days. The course follows established trails toward Brighton, loops back, and then descends to a flat final section before the finish.