Winter Downs 100®
The Winter Downs 100 is a 100 mile continuous trail run taking place over 11th-13th December 2026. The route starts at Amberley Museum in the heart of the South Downs and runs point to point, traversing the South Downs Way, Wayfarers Walk, St Swithuns Way and finally the North Downs Way to finish at Juniper Hall on the north side of Box Hill. The route is exactly the same as the second half of the Winter Downs 200. It is designed as a step up from our long standing 100 mile events as well as an opportunity for those looking to tackle the 200 in years to come, a chance to experience a winter adventure on the course itself.
Runners have up to 35 hours to complete the course with our usual live tracking available across the entire event. Runners will also be permitted to have a crew and access to drop bags at the three check points, where hot food and unrivalled volunteer support will be on hand. But the clock doesn't stop, this is a single stage race. With 16 hours of darkness each day, long stretches between aid stations and the undulating terrain, the race is designed to be an incredible winter running adventure on what is a phenomenal course.
Starting out from the beautiful Amberley Museum, the route travels west for 42 miles on the South Downs Way National Trail as far as its intersection with the Wayfarers Walk, just after Exton. The course then travels north east, first on the Wayfarers Walk and then the St. Swithuns Way up to Farnham - a section of 32 miles - to rejoin the North Downs Way at the trail head. The final 26 miles of the course takes runners on the NDW to Box Hill and Juniper Hall.
Vital Stats
- Distance: 100mi (160KM)
- Elevation: 10000ft (3050m)
- Cut-off: 35 hours
- Date: 11 Dec 2026 14:00
- No. of Starters: 100
- Aid Stations: 3
- Terrain: 16% road / 84% trail
Entries
Applications for 2026 will open at 1800 on Sunday 21st December 2025. Entries are strictly limited to allow an anticipated starting field of 100 runners. Places are available on a first come, first served basis and subject to acceptance by race management. Runners qualifying data will be verified 6 weeks prior to race day. There will be no waiting list for this event.
The total entry fee is £220 payable at time of entry (£222 for unaffiliated runners). If the application is rejected on the basis of qualification criteria, a full refund will be processed within 14 working days.
Runners must declare their previous running and multi-sport experience in their application. The key focus of which should be to instill confidence in us as organisers of their ability to cover very long distances between check points on foot, self-navigating in what could be extremely difficult conditions including 16 hours of darkness.