THE ORIGINAL SNOWDONIA TRAIL MARATHON

Events / Trail Running
XTERRA Snowdonia Trail Marathon 2023
Welcome to the XTERRA Snowdonia Trail Marathon, a stunning Trail Marathon, Ultra Marathon, Half Marathon and 10k, starting and finishing in Wales' outdoor capital, Llanberis. Entering the XTERRA Snowdonia Trail Marathon is your ticket to compete in one of the UK's most challenging trail races.
The incredible routes explore the trails, gorgeous panoramic views and tough climbs that make Snowdonia National Park so popular with outdoor enthusiasts. Visiting Rhyd Ddu, Beddgelert, Nant Gwynant, Pen y Pass, and Snowdon, there surely can't be a more striking trail marathon route in the UK!
The Ultra Marathon and Marathon are both UTMB indexed races.
Choose your distance
XTERRA Snowdonia Trail Marathon 2023
10k
09 Jul 2023
Run: 9.8km

XTERRA Snowdonia Trail Marathon 2023
Half Marathon
09 Jul 2023
Run: 12.9miles

XTERRA Snowdonia Trail Marathon 2023
Marathon
09 Jul 2023
Run: 27.3 miles

XTERRA Snowdonia Trail Marathon 2023
Ultra Marathon
09 Jul 2023
Run: 57km
What's Included

Lively Event Village
Music, commentary, shopping, food, kit demos and toilets

Family Friendly Vibes
Family finishes and plenty to see and do

On Course Support
Friendly marshals, signage, energy stations and support vehicles

Unique Finisher Mementos!
Beautifully designed to reflect our event locations and local history.

Spectacular Scenery
Unbeatable views across Snowdonia

Professional Timing
Chip timing, live tracker and online results

'If you are looking for a challenge, the Snowdonia Trail Marathon is up there with the toughest in the UK. A punishing and beautiful experience in equal measure, ensure this one is on your bucket list'.
2019 Participant
Event Information

XTERRA Snowdonia Trail Marathon 2023
FAQs

XTERRA Snowdonia Trail Marathon 2023
Travel & Accommodation

XTERRA Snowdonia Trail Marathon 2023
Info for Locals

XTERRA Snowdonia Trail Marathon 2023
Volunteer

XTERRA Snowdonia Trail Marathon 2023
Gallery

XTERRA Snowdonia Trail Marathon 2023
Race Reports
We are proud that all our events are bilingual. Signs, registration and commentary are available in English and Welsh.
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