South Downs 100 mile (Autumn Event)

OCT
3
2026
Experience a 100 mile single loop trail race through the South Downs National Park starting from Plumpton Racecourse. This event features 12000 feet of elevation and includes twelve aid stations with onsite camping available.
Sat 3 Oct 2026
100 miles

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South Downs 100 Mile (Autumn Event)

The South Downs 100 mile is a single loop trail race staged within the South Downs National Park. The event starts and ends at Plumpton Racecourse in Lewes, East Sussex. The route consists of over 12,000 feet of total elevation and features a terrain composed of rolling hills and various trail sections.

Participants have a 34 hour cutoff time to complete the course. Along the route, there are 12 aid stations positioned to support runners during the event. Registration is open to individuals aged 20 and over on the day of the race.

Available distances:

  • 100 miles

This race is a qualifying event for the South Downs Triple Crown. This challenge involves completing three specific ultra distance races organized by UK Ultra within a single calendar year. There are four different variations of the Triple Crown available for participants to choose from.

Free onsite camping is provided for participants at the race venue over the course of the weekend. The event takes place in early October, showcasing the autumn landscape of the National Park. Visit the organization's website for the most recent information.

100 mi
South Downs 100 Miles