South Downs 100 mile (Autumn Event)

Lewes, United Kingdom • 3 Oct 2026

South Downs 100 mile (Autumn Event)

The South Downs 100 mile is a single-loop trail race through the South Downs National Park. The event is based at Plumpton Racecourse in Lewes, East Sussex. The course includes more than 12,000 ft of elevation, rolling hills and multiple viewpoints. There are 12 aid stations positioned along the route and a 34 hour cutoff time. Free onsite camping is provided over the weekend.

The 100 mile race is part of the South Downs Triple Crown, a challenge beginning in 2025 that requires completing three ultra distance races within the calendar year. Four different variations of the Triple Crown are offered. The event listing shows an entry fee of GBP 185. Visit the organization's website for the most recent information.

Race information

100 mi
South Downs 100 Miles
Visit the organization's website for the most recent information.
Trail runs nearby

A trail event at Housedean Farm near Lewes offering a half marathon and a 10K through South Downs scenery. The course mixes gravel paths and well kept trails and includes chip timing, aid stations and on site camping.

A trail event at Telscombe Playing Fields on 28 June 2026 featuring a 10 km race and a junior fun run across bridleways, the South Downs Way and Greenwich Meridian Trail, with medals, photos and finish refreshments.

A scenic 7.5 km trail loop around Alfriston with over 80% off-road running, course marshals and prizes for first male and female. Facilities and parking are at The Old Chapel Centre and entries are limited to 50.

Two off road races around Bewl Water on 5 July 2026 organised by Wadhurst Runners. The 15 mile route includes the nature reserve and a four hour time limit; finishers receive a medal, t shirt and refreshments.

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