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Ultramarathon Database

Amberley, United Kingdom · Trail

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Winter Downs 100

Centurion's unmarked winter 100 from Amberley to Box Hill, on the South Downs Way, the Wayfarers Walk, the St Swithuns Way and the North Downs Way: 10,000 feet of climb and a 35-hour cutoff.

2025·2026

Friday, December 11, 2026 at 2:00 PM UTC

Applications are accepted through November 29, 2026.

Distances

Distance
100 mi (161 km)
Vert gain
10,000 ft (3,000 m)
Cutoff
35 hr

Course records: Natalie Utting 18:09:04 (2025) · Geoff Cheshire 15:44:26 (2024)

About

The Winter Downs 100 starts at Amberley Museum in the South Downs and runs point to point to Juniper Hall on the north side of Box Hill, using four national and regional trails in turn: 42 miles west on the South Downs Way, 32 north east on the Wayfarers Walk and the St Swithuns Way to Farnham, then the last 26 on the North Downs Way. It is the second half of the Winter Downs 200 course, run as a race of its own.

The course is not marked and there are only three aid stations, so it is a navigation race as much as a running one. It starts at 2:00 p.m. and holds a 35-hour cutoff, which puts around 16 hours of darkness into each of its two nights. Entry is by application to the race management rather than to a fixed qualifying standard, and the field is 100 runners.

Course

Point to point from Amberley Museum to Juniper Hall near Dorking, running 42 miles west along the South Downs Way to the Wayfarers Walk after Exton, then 32 miles north east on the Wayfarers Walk and the St Swithuns Way to Farnham, and finishing on 26 miles of the North Downs Way over Box Hill. 100 miles with 10,000 feet of climb. The course is unmarked, there are three checkpoints with crew access and drop bags, and the clock does not stop.

How to register

Entry is first come, first served but subject to acceptance by the race management, which reads a runner's experience rather than checking a single qualifying time: Centurion's own gauge is that a finish at a single-stage trail 100K or longer stands a good chance, and that anything shorter on its own will not. The field is 100 runners. Registration is on SiEntries and entries close at the end of November.

Results by year

  • 2026December 11, 2026 · upcoming
  • 2025December 12, 2025 · completed
    Harry Pickering 17:19:17 · Natalie Utting 18:09:04 (CR)

More from Centurion Running

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