Xterra Snowdonia Trail Marathon Eryri

Llanberis, United Kingdom • 11 Jul 2026

The XTERRA Snowdonia Trail Marathon Eryri is a scenic and challenging trail running event held in the stunning Eryri (Snowdonia) National Park, North Wales. Starting and finishing in the adventure town of Llanberis, the race offers four distances: Ultra Marathon, Marathon, Half Marathon, and 10k. The courses traverse diverse and breathtaking landscapes, including mountain trails, forest paths, and rugged climbs, passing through notable locations such as Rhyd Ddu, Beddgelert, Nant Gwynant, Pen y Pass, and Mount Snowdon, the highest peak in Wales. Organized by Always Aim High Events, the race combines natural beauty with a professionally run, friendly atmosphere, attracting trail enthusiasts worldwide. Visit the organization's website for the most recent information.

Race information

26 mi
Marathon
13 mi
Half Marathon
10 km
10k
Ultra Marathon
Visit the organization's website for the most recent information.
Trail runs nearby

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 Snowd..

UTMB Index

Snowdon24 is a 24-hour ultra trail running event held in Llanberis, Eryri (Snowdonia), featuring multiple ascents and descents of Yr Wyddfa (Snowdon), the highest mountain in Wales and England at 1,085 meters (3,560 feet). Participants, either solo or in teams of up to five, aim to complete as many..

UTMB Index

The Welsh 3000 Challenge (14 Peaks) is a demanding mountain running and walking event held in Snowdonia, starting near Capel Curig, UK. Participants aim to summit all 14 peaks over 3000ft in a continuous journey covering about 50km with nearly 4000m of ascent. Highlights include climbing Snowdon, tr..

The Paddy Buckley Round is a challenging, professionally guided running event held in Northern Snowdonia, Wales. Covering a loop of just over 100 km with approximately 9,000 meters of ascent and descent, it includes 47 mountain tops across major ranges such as Moelwyn and Nantle Ridge. The event is..

Ultra X Wales is a multi-stage ultra marathon held in southern Snowdonia, western Wales, featuring stunning landscapes from the northern Cambrian mountains to lakes, coastline, mountains, and beaches. The event offers four race distances: a 110km two-day race, and single-day races of 60km, 50km, and..

UTMB Index

Ogwen | Yr Helgi Du 2025 is a mountain trail running event held at Plas y Brenin, Capel Curig, in the scenic Ogwen Valley of Eryri (Snowdonia), North Wales. The race offers three distances—10K, 25K, and 40K—covering some of the highest mountains in England and Wales, including the Carneddau and Glyd..

UTMB Index