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past editionAPEX Running
Race Across Snowdonia
Past edition: Thursday, 22 July 2021 – Friday, 23 July 2021Aber Falls to Aberdyfi, Wales
A two-stage north-to-south mountain crossing of Eryri, retained as 2021 history while the organiser marks the event on hiatus.
Official race site (opens in a new tab)
Optional device-only history; never synced to your account. Shared-device users can leave it off.
Distance76.4 mi
Ascent6,500m*
Climb / km52.8m
Stage cutoff16h · 65km
Stage pace14:46/km
TechnicalityUnknown
EntryNot verified
FormatPoint-to-point
Latest past edition
22 July 2021 – 23 July 2021
Next edition not yet announced
No confirmed future edition is currently recorded in our sources. The facts below describe the scheduled 2021 edition and are retained for comparison and runner history. An elapsed date does not confirm that the event took place.
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
5.9/ 10
Hard
Limited input evidence · 52% evidence coverage
The main recorded demands are high climbing demand. 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 0.00 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. 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 percent5.7 out of 10
Climbing, weighted 25 percent7.4 out of 10
Technicality, weighted 15 percent5.5 out of 10
Accumulated burden, weighted 17 percent4.6 out of 10
Exposure & support, weighted 13 percent5.9 out of 10
Course analysis
What shapes this race
Expect sustained upland ground and meaningful climbing, sections where foot placement and downhill confidence matter.
trailmountainfelltechnicalmixed
Climbing density
52.8m per km
A more useful comparison than total ascent alone: it shows how consistently the course asks you to climb.
Cutoff analysis
High pressure
Cutoff Pressure V2 is governed by the tightest published active-time stage: Aber Falls to Cwm Bychan, with 16h for 65km. Its course-adjusted allowance is 9.39 minutes per effort-kilometre.
Governing stage pace14:46/km
PressureHigh pressure
The governing stage pace includes stops made during that stage. Between-stage recovery and sleep are excluded from active running allowance, so a broad multi-day event window cannot hide a tighter stage.
Who this suits
First ultra?
There is not enough verified information to assess first-ultra suitability yet.
Navigation
self-navigation
Route-finding is part of the challenge. Carry the required mapping tools and be able to use them in darkness and poor visibility.
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 PartialChecked 13 September 2026. The published 2-stage layout has been checked. The official page supports a two-stage 123K/6,500m+ crossing with a 16-hour limit per stage. Those stage curfews are not added into an invented overall cutoff; the family is now officially on hiatus. Other stored facts retain their previous source review from 2026-09-02.
- Successful source check
- 2 Sept 2026
- Catalogue record updated
- 13 Sept 2026
- Official source
- Available
Still unverified: cutoff, entry price.
Elevation is approximate or awaiting final confirmation.
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?
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