Centurion South Downs Way 100
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About the race
The South Downs Way 100 is a 100 mile non-stop foot race following the entire South Downs Way National Trail. The course runs from just outside Winchester to Eastbourne and follows the chalk ridgeway across rolling hills, ancient forts and villages, with extensive views across southern England. The route is mostly trail (85%) with some road sections (15%) and a total ascent of about 12,700 ft (3,800 m). The distance is 100 mi / 161 km and the overall cut off is 30 hours.
Runners are supported by a minimum of 12 official aid stations stocked with hot drinks, hot food at selected later stations, and a range of nutrition including gels, bars, fruit and savoury options; provisions cover vegetarian, vegan and gluten free needs. The course is marked by South Downs Way posts together with event ribbons and arrows, and full medical support is provided throughout. The race is held under a UK Athletics permit through the TRA.
Entry information: general entries for 2027 open on 19 July 2026 and places are offered first come, first served. Entry fee for general entries is £225. Qualification requires completion of at least a 50 mile race within 15 hours between 1 January 2020 and race day; unqualified entrants will be contacted before the event.
Logistics and rules include three official drop-bag locations (Mile 54 Washington, Mile 76 Housedean, finish at Eastbourne), pacers permitted from Kithurst Hill (mile 50) with bib requirements, one crew vehicle per runner restricted to listed access points, mandatory kit checks with a detailed equipment list, and awards including finisher buckles and category trophies. Visit the organization's website for the most recent information.
