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 race starts at Plumpton Racecourse near Lewes in East Sussex. The route features rolling hills with over 12,000 ft of elevation gain. There are 12 aid stations along the way.

The event has a 34-hour cutoff time. Free onsite camping is available over the race weekend. The entry fee is £185. The race is open to entrants aged 20 and over.

This 100-mile race is part of the South Downs Triple Crown challenge. This challenge involves completing three of the organizer's ultra-distance races within a calendar year, with four different variations available. Visit the organization's website for the most recent information.

Race information

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

Run the iconic white cliffs of the Seven Sisters on England's south coast. Choose from four distances, from a 10K to a 32.5-mile Ultra, along the dramatic chalk coastline near Eastbourne. The event is part of the Endurancelife season challe..

UTMB Index

A 13.1 mile out and back trail from Dorking to Leith Hill Tower with about 1,800 feet of ascent, four water stations and marshals on course. Entry includes a reusable medal, race number, beer and a cooked breakfast, with profits donated loc..

The Steyning Stinger is a spring trail running event in early March, offering marathon, 30k, and half marathon distances. It is a licensed and UTMB-indexed race with a fully supported course. Participants receive a sustainable medal and fre..

UTMB Index

Explore new scenic routes on the North Downs and Greensand Ridge in West Kent. This walking and running event offers three distances with indoor checkpoints providing refreshments. Now in its 49th year, it finishes with hot food at West Hea..