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entries openThreshold Sports
Race to the Stones 100K Two-Day
Threshold Trail Series
Next edition: Saturday, 10 July 2027 – Sunday, 11 July 2027Lewknor to Avebury, England
A two-day, 100K Ridgeway journey from Lewknor to Avebury, split into two 50K stages with an overnight basecamp at Lattin Down. The stages total about 1,350 metres of ascent.
Official race site (opens in a new tab)
Optional device-only history; never synced to your account. Shared-device users can leave it off.
Distance62.1 mi
Ascent1,350m
Climb / km13.5m
CutoffUnknown
Cutoff paceUnknown
TechnicalityUnknown
EntryFrom £160
Formatmulti-stage
Next edition
10 July 2027 – 11 July 2027
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
4.1/ 10
Moderate
Moderate evidence confidence · 69% evidence coverage
This score is driven most by balanced overall demands. 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 percent5 out of 10
Climbing, weighted 25 percent3 out of 10
Technicality, weighted 15 percent5.5 out of 10
Accumulated burden, weighted 17 percent3.4 out of 10
Exposure & support, weighted 13 percent3.1 out of 10
Course analysis
What shapes this race
The course combines mixed terrain.
mixed
Climbing density
13.5m per km
A more useful comparison than total ascent alone: it shows how consistently the course asks you to climb.
Cutoff analysis
Unknown
The official overall cutoff has not yet been verified. Race For You will not estimate one.
Who this suits
First ultra?
There is not enough verified information to assess first-ultra suitability yet.
Navigation
fully marked
The route is described as marked, but runners should still read the final race instructions.
Exposure & kit
moderate kit
Night running is not expected for most entrants based on the current format, but final kit rules still take priority.
Personal race predictor
Will you make the cutoff?
Use a previous result to estimate a realistic range for Race to the Stones 100K Two-Day, your potential buffer and the biggest change in demand.
Practical detail
Support & logistics
Aid stations7 listed
StartLewknor
FinishAvebury
Support levelfully supported
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 PartialThe cited 2027 edition sources were reviewed on 4 September 2026 and support the recorded date, distance, ascent, format and lifecycle. Unresolved facts remain marked unknown rather than being inferred.
- Successful source check
- 4 Sept 2026
- Catalogue record updated
- 4 Sept 2026
- Official source
- Available
Still unverified: cutoff.
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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