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entries openCenturion Running
Winter Downs 100
Centurion Running
Next edition: Friday, 11 December 2026 – Sunday, 13 December 2026Amberley to Juniper Hall, England
The second half of the Winter Downs 200 route as a self-navigated 100-mile point-to-point race, linking four national trails through a 35-hour winter window.
Official race site (opens in a new tab)
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Distance99.4 mi
Ascent3,050m
Climb / km19.1m
Cutoff35h
Cutoff pace13:08/km
Technicality6/10
Entry£220
FormatPoint-to-point
Next edition
11 December 2026 – 13 December 2026
This is the most relevant confirmed edition currently held for the permanent race family. Edition-specific facts should still be checked against the final organiser instructions.
Edition archive
This is the only edition currently stored for this race family. Earlier verified editions can be added without changing the permanent race URL.
Check the official race source (opens in a new tab)Race For You difficulty
6.8/ 10
Hard
High evidence confidence · 94% evidence coverage
This score is driven most by substantial race distance, exposure and self-sufficiency, technical terrain. Difficulty V2's separate time-limit modifier adds 0.00 points here and is capped at 0.70; a broad limit cannot erase extreme intrinsic demand. This is independent of the public Cutoff Pressure V2 band.
Weather, conditions and individual preparation can change the real difficulty significantly.
How the score works Distance, weighted 30 percent6.8 out of 10
Climbing, weighted 25 percent4.6 out of 10
Technicality, weighted 15 percent6 out of 10
Accumulated burden, weighted 17 percent5.6 out of 10
Exposure & support, weighted 13 percent7.7 out of 10
Course analysis
What shapes this race
Expect sections where foot placement and downhill confidence matter, forest trail that may change character in wet conditions.
trailforestmixedtechnical
Climbing density
19.1m per km
A more useful comparison than total ascent alone: it shows how consistently the course asks you to climb.
Cutoff analysis
Moderate pressure
To finish inside 35h, the raw average required is 13:08 per kilometre (21:08 per mile), including every stop.
Raw pace13:08/km
PressureModerate pressure
Cutoff pressure compares the published time limit with distance, ascent and verified course demands. Lower pressure does not mean the race is easy. Raw pace includes checkpoints, food stops, navigation errors and any sleep; it is not a pacing plan.
Who this suits
First ultra?
This is not designed as a first-ultra recommendation. Significant endurance, navigation or mountain-race experience is strongly advised.
2/10 suitability
Navigation
GPS required
The route is described as marked, but runners should still read the final race instructions.
Exposure & kit
extensive kit
Significant overnight running is likely for many entrants. Lighting, temperature management and sleep strategy can materially affect the outcome.
Personal race predictor
Will you make the cutoff?
Use a previous result to estimate a realistic range for Winter Downs 100, your potential buffer and the biggest change in demand.
Practical detail
Support & logistics
Aid stations3 listed
StartAmberley
FinishJuniper Hall, Dorking
Support levelsemi-supported
LogisticsPublic transport possible
LogisticsAccommodation nearby
LogisticsBag drop
LogisticsCrew access
Logistics are only shown where currently recorded. Confirm parking, transport, crew access and final aid-station plans with the organiser.
Latest verification
Trust the source, see the gaps.
Data HighThe official page verifies the 11–13 December schedule, 160K distance, 3,050m ascent, 35-hour cutoff, £220 fee, 100-runner field, three supported checkpoints and unmarked GPX-led course. No standalone 2027 schedule is published, so no future date is created.
- Successful source check
- 1 Sept 2026
- Catalogue record updated
- 1 Sept 2026
- Official source
- Available
Event details can change after a successful source check. Confirm the final route, kit, cutoff, price and entry terms directly with the organiser before entering or travelling.
Found something wrong?
Help keep this race accurate.
Wrong cutoff? Date changed? New course? Tell us what moved and include the official source if you have it.
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