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Ultra-Trail Snowdonia by Utmb

Llanberis, United Kingdom • 16-18 May 2025

The Ultra-Trail Snowdonia by UTMB is a prominent event in the UK's UTMB World Series, showcasing the stunning landscapes of North Wales. Participants can choose from various race distances, including 100M, 100K, 50K, and a 25K option, each featuring challenging technical trails and significant elevation gains. The event attracts a diverse group of runners from over 65 nationalities, emphasizing both competition and camaraderie in a breathtaking natural setting. With its combination of rugged terrain and scenic beauty, the Ultra-Trail Snowdonia offers an unforgettable experience for trail running enthusiasts. 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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