Ultra Trail Snowdonia 50km
- Total distance: 50 km
- Location: snowdon
- Race Date: 16 May 2027
- Finish rate: 81%
- Navigation: Fully Waymarked
- Nearest Station: Llanberis (LLR) (0.1 km)
- Night Running: 0% in darkness
- Pacing Complexity: Very High (83/100)
Ultra Trail Snowdonia 50km
- Distance
- 50 km
- Total ascent
- 3,670 m
- Cut-off
- 14h
- Town/Village
- snowdon
- Date
- 16 May 2027
Overview
No overview text has been written for this race yet.
Quick Facts
- Entrance Cost: Unknown
- Organiser: UTMB
- Start Town: snowdon
- Dogs Allowed: Unknown
- Start Date: 16 May 2027
- End Date: 16 May 2027
- Start Time: 8:30 AM
- Final Cut-off: 14h
Navigation
- Type: Fully Waymarked
- Closest Train Station: Llanberis (LLR)
- Distance from Start Line: 0.1 km
Eligibility
- Minimum Age: 20 years
- Gender Eligibility: All genders
- Minimum Entry Criteria: Unknown
Toilets
- Hand Washing Beyond Sanitiser: Unknown
- Period Products Provided: Unknown
- Female Only Toilets: Unknown
Family & Spectators
- Baby Changing at Start: Unknown
- Family Friendly Spectator Areas: Unknown
- Flexible Deferral or Cancellation: Unknown
Safety
- Marshalls at Isolated Areas: Unknown
- Safeguarding and Reporting Policy: Unknown
- Can Hide Location from Public Tracking: Unknown
Terrain & Elevation
The course covers a genuine mix of surfaces, with gravel (32%) and rocky terrain (29%) being the most common and neither clearly dominating. The terrain is highly fragmented, switching roughly every kilometre. This demands constant mental engagement and limits the ability to build a sustained rhythm from surface consistency alone. The longest unbroken stretch is 5.3 km of rocky terrain. Climbs are mostly on rocky terrain, though the surface varies across the ascents. Downhills are spread across a mix of surfaces, with gravel most common.
Ultra Trail Snowdonia 50km has 16.6 km of gravel / track, this is in the top 47% of all our races.
- Gravel / Track32% · 16.6 km
- Rocky29% · 15.2 km
- Grass18% · 9.5 km
- Trail / Path16% · 8.1 km
- Paved Road5% · 2.6 km
- Off-road / Unknown0% · 0.1 km
Distance
56.6 km
Ascent
3670 m
Descent
3670 m
High Point
1066 m
Technical km total
26.1 km
% of course
52%
In final third
0 km
In first third
6.9 km
Compared against 29 other races of a similar distance, Ultra Trail Snowdonia 50km has more total elevation gain than 93% of them, and more elevation gain per kilometre than 97% of them — significantly hillier than typical for its distance.
Source: GPX Data
Gradient
15.79%
Average climb gradient
Do you have experience of steep climbs like Ultra Trail Snowdonia 50km's, which average 15.79%?
Ultra Trail Snowdonia 50km's climbs average 15.79%. If your training never rehearses sustained climbing at that gradient, race day will be the first time your legs meet it.
10.98%
Average descent gradient
Do you have experience of moderate descents like Ultra Trail Snowdonia 50km's, which average 10.98%?
Ultra Trail Snowdonia 50km's descents average 10.98%. If your training never rehearses sustained descending at that gradient, the downhills will empty your quads long before the finish.
Source: GPX Data
Climate
Pacing Complexity
Ultra Trail Snowdonia 50km scores 83/100 for pacing complexity, rated very high.
Similar-distance races score a median of 44/100 (5 races compared).
Ultra Trail Snowdonia 50km is among the more pacing-complex races at this distance. The challenge is not just the total distance or ascent — it is the repeated need to change effort level. A fixed pace target is unlikely to work here. The dominant source of complexity is gradient transitions, which means preparation should include training runs that deliberately mix different intensities in sequence.
Source: GPX Data
Aid Stations
No aid station data available for this race yet.
Are you ready for Ultra Trail Snowdonia 50km?
Compare it to a race you've already run, or connect Strava and see the three biggest gaps between your training and what this course will ask of you.
