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Ultra-Trail Snowdonia by Utmb

Llanberis, United Kingdom • 16-18 May 2025

Ultra-Trail Snowdonia by UTMB is the UK's only event in the prestigious UTMB® World Series, showcasing a stunning array of technical trails through the breathtaking landscapes of Snowdonia. The event features multiple race distances, including 100M, 100K, 50K, and a 25K, attracting over 2,700 runners from more than 65 nationalities. Participants experience the rugged wilderness of North Wales, making it a unique and challenging adventure for trail running enthusiasts. The event emphasizes both the beauty and the intensity of the trails, promising an unforgettable experience for all involved. Visit the organization's website for the most recent information.

United Kingdom Wales Llanberis

Race information

Website
UTMB 20K UTMB 50K UTMB 100K UTMB 100M
168 km
9500 m+
Uts 100m
100 km
6400 m+
Uts 100k
50 km
3300 m+
Uts 50k
25 km
1300 m+
Eryri 25k
Visit the organization's website for the most recent information.
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