A 161 km (100 mile) point-to-point ultra along the South Downs Way National Trail from Winchester to Eastbourne with approximately 3,800 m of ascent. The route follows chalk ridgeway, grassy trail and established track across the South Downs with sustained climbs and exposed sections along the ridgeline. Fully marked, with multiple aid stations throughout.

Other races at the same event weekend:
Centurion South Downs Way 50 , 80 km (50 miles)