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South Downs 100 mile (Autumn Event)

Name: South Downs 100 mile (Autumn Event)
Start: 2026-10-03
End: 2026-10-03
Location: Lewes

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.

United Kingdom South East (England) Lewes

Race information

Registration

100 mi

South Downs 100 Miles

Visit the organization's website for the most recent information.

Trail runs nearby

Saturday May 2

Mid Sussex Marathon Weekend

...

A three day series across East Grinstead, Haywards Heath and Burgess Hill offering 10 mile, 10k, mile and fun run distances plus combined marathon and virtual options.

Sat - Sun May-Oct 2-18

100 Mile Grand Slam

Worthing

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A single entry that covers four Centurion 100 mile races between 2 May and 18 October 2026, organised by Centurion Running. The combined entry is full and the minimum age for entry is 20.

Sunday May 3

Three Forts Challenge

Trail races across the South Downs from Lancing Manor Leisure Centre on Sunday 3rd May 2026. Choices include marathon, half marathon and a 5 mile trail run with aid stations and course marshals.

Sunday May 3

Box Hill Vertical KM

Dorking

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A guided, non-competitive trail run around Box Hill, covering 12.5 miles with about 1000 m of ascent through woodland, heathland and fields. The route is technical in places and led by an experienced guide.