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Dragon Slayer Ultra
Next edition: Sunday, 29 August 2027Chepstow via Monmouth, Wales
A cross-border loop from Chepstow through the Wye Valley and Monmouth, catalogued once under its Welsh event identity.
Race area · approximate race area. Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Location evidence
Source location explicitly Chepstow via Monmouth. Chepstow small locality in Monmouthshire matches first event area; Monmouth waypoint not substituted. Event-to-place relation reuses completed saved catalogue research; this pass verifies geographic match only. GeoNames supplies a representative locality or named-landmark point. This is approximate event area, not exact start-line coordinates. GeoNames, CC BY 4.0; https://www.geonames.org/about.html
Location checked 2026-09-14.
Official race site (opens in a new tab)
Optional device-only history; never synced to your account. Shared-device users can leave it off.
Distance35 mi
AscentUnknown
Climb / kmUnknown
Cutoff11h
Cutoff pace11:43/km
TechnicalityUnknown
EntryFrom £35
FormatLooped
Next edition
29 August 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
4.3/ 10
Moderate
Limited input evidence · 36% evidence coverage
The main recorded demands are balanced overall demands. Course difficulty and cutoff pressure describe different challenges: more approachable terrain can still require a demanding pace to beat the deadline. Neither score assesses your personal fitness, safety or readiness.
Scoring details and version
Difficulty V2's separate time-limit modifier adds 0.15 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. Evidence coverage describes the recorded inputs, not prediction accuracy or your likelihood of finishing.
Weather, conditions and individual preparation can change the real difficulty significantly.
How the score works Distance, weighted 30 percent3.2 out of 10
Climbing, weighted 25 percent5.5 out of 10
Technicality, weighted 15 percent5.5 out of 10
Accumulated burden, weighted 17 percent2.1 out of 10
Exposure & support, weighted 13 percent5.1 out of 10
Course analysis
What shapes this race
Expect forest trail that may change character in wet conditions.
trailforestmixed
Cutoff analysis
Moderate pressure
To finish inside 11h, the raw average required is 11:43 per kilometre (18:52 per mile), including every stop.
Raw pace11:43/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.
Because ascent is not verified, Cutoff Pressure V2 uses the model's neutral 20m/km reference density. This assumption does not fill the ascent value or make missing evidence look easy.
Who this suits
First ultra?
There is not enough verified information to assess first-ultra suitability yet.
Exposure & kit
unknown kit
Night-running exposure has not been verified for this edition. Check the organiser’s latest schedule, route information and final kit rules.
Personal race predictor
Prediction unavailable
No current compatible predictor target is available for this family. The selected edition may be complete or cancelled, awaiting a successor, non-standard, or missing model-critical course evidence; older facts are not substituted.
Latest verification
Trust the source, see the gaps.
Data PartialThe organiser and authorised entry verify 29 August 2027, 35 miles, the Chepstow–Monmouth–Chepstow cross-border loop, 09:00–20:00 limit and £35 early/£40 entry. No 2026 edition is invented.
- Successful source check
- 3 Sept 2026
- Catalogue record updated
- 3 Sept 2026
- Official source
- Available
Still unverified: elevation.
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.
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