South Downs 100 mile (Autumn Event)

SEP

25

2027

A single loop 100 mile trail race through the South Downs National Park from Plumpton Racecourse with over 12,000 ft elevation, 12 aid stations and a 34 hour cutoff.

Sat 25 Sep 2027

Plumpton Green, South East (England)

Website

100 miles

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About the race

The South Downs 100 mile is a single loop trail race through the South Downs National Park, based at Plumpton Racecourse in Lewes, East Sussex. The event is scheduled for 25 September 2027 and covers a route with more than 12,000 ft of elevation and varied rolling terrain.

The route passes through open downs and offers wide views across the park. The course is supported by 12 aid stations and uses a 34 hour cutoff time for completion. Free onsite camping is available over the weekend for participants.

The 100 mile race is part of the South Downs Triple Crown, a challenge launching in 2025 that requires completing three ultra distance races within the calendar year. There are four variations of the Triple Crown to choose from.

Entry for the 2027 100 mile race is listed at £190. The event is organised by UK Ultra and takes place at Plumpton Racecourse in Lewes, East Sussex. Visit the organization's website for the most recent information.