Ultra-Trail Snowdonia by UTMB®
Route reference
The Ultra-Trail Snowdonia by UTMB® - Eryri 100M 2026 page brings together published data for this running route.
The route is listed from Llanberis, United Kingdom to Llanberis, with 161.4 km and 8,642 m D+ on the page.
Listed organiser: UTMB® World Series.
Calculated values for this track: 161.2 km of distance calculated from the GPX track · 9,340 m ascent calculated from GPX elevations.
These track measurements remain separate from the organiser's figures and depend on the GPX version and sampling.
Aid stations or life bases: 12 · listed water points: 1 · checkpoints: 10.
Official sources: 1 · sources with a recorded review date: 1. Updates from the organiser always take precedence.
Latest recorded check: 15 September 2026.
Yes. The track and its profile can be viewed here, and the file is available as a free download from this page.
No. This page makes sources easier to consult and separates published data from GPX calculations. Check the latest official instructions before the start.
JooniurCC BY-SA 4.0 · adapted image
Raimond SpekkingCC BY-SA 4.0 · adapted image
Daniel TurnerPublic domain, released by the author (PD-self) · adapted image
Daniel TurnerPublic domain, released by the author (PD-self) · adapted image
Daniel TurnerPublic domain, released by the author (PD-self) · adapted image
Daniel TurnerPublic domain, released by the author (PD-self) · adapted image
Reviewed information
These items are shown explicitly so an approximation is never presented as official data.
Check the information
These links point to the documents used. The organiser's instructions remain authoritative if they change.
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