Known as "The Tough One" the Three Forts Marathon includes a total of c. 3450 ft of climb with stiles and rough tracks underfoot. The route runs northwards from Hill Barn to Cissbury Ring, then eastwards towards Coombs then to Botolphs and the River Adur crossing. The route then goes to Devil’s Dyke and back to the River Adur. It continues on the South Downs Way to Chanctonbury Ring, where it swings south-west to Findon Park Farm. It stays on public bridleways to Cissbury Ring and back to Hill Barn. Closing date is 16 April, 2016. No entries on the day.  Organisers Worthing District Rotary Clubs.

Timing of event by ChiptimingUK.  Photos by Sussex Sport Photography.

See website for full information