Xterra Snowdonia Trail Marathon Eryri

Llanberis, United Kingdom • 12 Jul 2025

The XTERRA Snowdonia Trail Marathon Eryri is a premier trail running event held in Llanberis, North Wales, known as Wales' outdoor capital. Participants can choose from a 10k, half marathon (12.9 miles), marathon (27.3 miles), or ultra marathon (57 km), all featuring challenging routes through Snowdonia National Park. The course offers stunning panoramic views and tough climbs, including iconic locations like Yr Wyddfa (Snowdon), Rhyd Ddu, Beddgelert, Nant Gwynant, and Pen y Pass. The event is part of the XTERRA Trail Run World Series and is UTMB-indexed, attracting trail runners seeking a demanding and scenic race. Family-friendly activities and strong community support enhance the vibrant atmosphere. Visit the organization's website for the most recent information.

Race information

UTMB 50K
57 km
Ultra Marathon
26 mi
Marathon
13 mi
Half Marathon
10 km
10k
Visit the organization's website for the most recent information.
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