A 52 km loop ultramarathon starting at Queen Elizabeth Country Park following a shortened version of the 50 mile course across the South Downs. The route includes chalk ridgeway, woodland trails and rolling downland terrain with sustained elevation changes. Surfaces are predominantly chalk and grass trail with occasional track sections. The course is marked and supported with checkpoints and aid stations placed along the route.

• Other races at the same event:
Hibernal Hills 50 Mile Ultramarathon