Trail Running100 Miles

Uts 100m

15 May 2026

Llanberis, Wales, United Kingdom

Race details

Modality

Individual

Organizer

Ultra Trail Snowdonia

Distance

164 km

Elevation

+9,500 m

Start time

11:00

Terrain

Trail

Difficulty

Elite

Course profile

Mountainous

Minimum age

18+

Certified

Yes

Circuit

UTMB World Series

Event description

The UTS 100M is the flagship race of Ultra-Trail Snowdonia, traversing the most technical and breathtaking landscapes of Wales' Eryri National Park. Featuring 164km with a massive 9500m of elevation gain, it is widely regarded as one of the UK's most challenging and beautiful mountain ultramarathons.

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In the news

⛰️ Trail Running11 May 2026

Mud, Rock, and Golden Tickets to Chamonix: UTS Challenges European Dominance

Llanberis hosts the most competitive UTS to date, where 9,500m of elevation gain and technical Welsh terrain will push the world's trail elite to the limit.

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Sport

Trail Running

Distance

100 Miles

Country

United Kingdom

Region

Wales