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past editionUltra X
Ultra X I Feel Slovenia 110K
Ultra X 110
Past edition: Saturday, 5 September 2026 – Sunday, 6 September 2026Ajdovščina, Slovenia
A technical two-day trail ultra in western Slovenia, crossing the ridges, forests and limestone terrain surrounding the Vipava Valley.
Official race site (opens in a new tab)
Optional device-only history; never synced to your account. Shared-device users can leave it off.
Distance68.4 mi
Ascent4,356m
Climb / km39.6m
Stage cutoff16h · 60km
Stage pace16:00/km
Technicality8/10
EntryNot verified
Formatmulti-stage
Latest past edition
5 September 2026 – 6 September 2026
Next edition not yet announced
No confirmed future edition is currently recorded in our sources. The facts below describe the scheduled 2026 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
5.6/ 10
Hard
Moderate input evidence · 78% evidence coverage
The main recorded demands are high climbing demand, technical terrain. 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 percent5.3 out of 10
Climbing, weighted 25 percent6.2 out of 10
Technicality, weighted 15 percent8 out of 10
Accumulated burden, weighted 17 percent4.3 out of 10
Exposure & support, weighted 13 percent3.9 out of 10
Course analysis
What shapes this race
Expect sustained upland ground and meaningful climbing, sections where foot placement and downhill confidence matter, forest trail that may change character in wet conditions.
trailmountainforesttechnical
Climbing density
39.6m per km
A more useful comparison than total ascent alone: it shows how consistently the course asks you to climb.
Cutoff analysis
Moderate pressure
Cutoff Pressure V2 is governed by the tightest published active-time stage: Stage 1, with 16h for 60km. Its course-adjusted allowance is 10.22 minutes per effort-kilometre.
Governing stage pace16:00/km
PressureModerate 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?
Better suited to runners with prior ultra, mountain or technical-terrain experience than to somebody choosing their first ultra.
3/10 suitability
Navigation
fully marked
The route is described as marked, but runners should still read the final race instructions.
Exposure & kit
unknown kit
Some entrants may run into darkness depending on pace and start time. Prepare lighting even if your best-case plan finishes earlier.
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.
Practical detail
Support & logistics
Support levelfully supported
LogisticsCamping available
LogisticsAccommodation nearby
LogisticsBag drop
UTMB100K
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 current official event page and its late linked race pack verify the 5–6 September dates, 110K total distance, revised stage facts and 16-hour plus 13.5-hour stage windows. The current pack's 4,356m event total conflicts with its 4,454m stage sum; its superseded April pack instead published 111K and 4,236m, so those changes and both ascent alternatives remain explicit. The organiser-linked Race Space booking controls now mark every entry closed, which is used over the event page's stale Enter Now control and Race Space's contradictory InStock structured data.
- Successful source check
- 4 Sept 2026
- Catalogue record updated
- 4 Sept 2026
- Official source
- Available
Still unverified: entry price.
Official source 1 (opens in a new tab)Official source 2 (opens in a new tab)Official source 3 (opens in a new tab)Official source 4 (opens in a new tab)
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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Wrong cutoff? Date changed? New course? Tell us what moved and include the official source if you have it.
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