The second half of the Winter Downs 200: 100 unmarked December miles from Amberley to Box Hill
Other trail races within 40 miles
A point-to-point 100-miler that follows the second half of the Winter Downs 200 route. It starts at Amberley Museum in West Sussex at 2 pm, runs 42 miles west on the South Downs Way, turns north-east on the Wayfarers Walk and St Swithuns Way through Alton to Farnham, then follows the North Downs Way east past St Martha's and Newlands Corner to finish at Juniper Hall below Box Hill. The course is not marked, so runners navigate by GPX. Only three checkpoints (miles 30, 49 and 80) serve hot food and drop bags, with crew allowed at listed points between them. The afternoon start means two long winter nights inside the 35-hour limit. Centurion pitches it as a step up from its summer 100s and a taste of the 200.
Experienced ultrarunners
Dorking, Surrey, United KingdomDecember 11, 2026
Winter Downs 100 is a point-to-point trail race in Dorking, Surrey, United Kingdom, held on December 11, 2026. The course covers 160.9 km, climbs 3,050 m, and has a 35h cutoff.
Entry by application
Entry is by application. Runners declare their running and multi-sport experience, and race management may refuse any application. As a guide, a finish at a single-stage trail race of 100 km or longer gives a good chance of acceptance. Shorter finishes alone are not enough. Self-powered winter or mountain journeys, adventure racing, orienteering and climbing also count. Qualifying data is verified 6 weeks before race day; a rejected application is refunded in full.
| Location | km | Elevation | Cutoff | Crew | Drop bags |
|---|---|---|---|---|---|
Amberley Museum Start | 0.0 | 4 m | — | Crew | |
Cocking Hill Car Park Crew Access | 20.9 | 106 m | — | Crew | |
Harting Down Crew Access | 32.2 | 199 m | — | Crew | |
Queen Elizabeth Country Park Crew Access | 41.7 | 117 m | — | Crew | |
Butser Hill Crew Access | 43.5 | 224 m | — | Crew | |
Sustainability Centre Aid Station | 48.3 | 211 m | 10h30m12:30 AM +1 | Drop Bags | |
Old Winchester Hill Crew Access | 55.0 | 194 m | — | Crew | |
Beaconhill Beeches Crew Access | 63.1 | 192 m | — | Crew | |
Bishops Sutton Aid Station | 78.9 | 79 m | 17h10m7:10 AM +1 | Drop Bags | |
Alton Crew Access | 97.8 | 107 m | — | Crew | |
Farnham Crew Access | 117.5 | 67 m | — | Crew | |
Puttenham Aid Station | 128.8 | 107 m | 28h6:00 PM +1 | Drop Bags | |
St. Marthas Crew Access | 138.2 | 113 m | — | Crew | |
Newlands Corner Crew Access | 141.3 | 182 m | — | Crew | |
Denbies Hillside Crew Access | 152.9 | 191 m | — | Crew | |
Juniper Hall Finish | 160.9 | 61 m | 35h1:00 AM +2 | Crew |
Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.
Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.
No camping. Runners can park free at Amberley Museum and leave the car there; there is no parking at Juniper Hall. Juniper Hall has rooms for runners to sleep after finishing. Hotels in Arundel and Dorking.
Mid-December in south-east England: short days with about 8 hours of light, average temperatures near 5°C (41°F) and humidity around 80%. Rain is common (about 90 mm for the month), so chalk and clay trails are often muddy and slippery. Nights on the open downs can be windy and near or below freezing.
December race in southern England; average temperature about 5°C, colder overnight on exposed downland
December averages about 90 mm of rain; mud and wet chalk are likely
About 16 hours of darkness each day, with wind, rain and frost all possible
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