Ultra-Trail Snowdonia Eryri by UTMB
External Event
Distance
15.5–62.1 mi
Pace
Varied
Terrain
Mountain Trail
Difficulty
Very Challenging
About this run
The Ultra-Trail Snowdonia Eryri by UTMB takes place in Llanberis, Wales, between May 15-17, 2026. Participants can choose from distances ranging from 25 km to 100 km. Prepare for a demanding mountain race.
What to expect
- Ultra and trail running distances
- Mountainous Welsh scenery
- UTMB event series experience
Typical conditions
For events around May 2026 in Llanberis, Wales: Typical spring conditions in this region — mornings can still be cool; confirm start-time guidance on the official page.
How to prepare
Trail events reward time on uneven surfaces and hills. Practice footing and bring the shoes and hydration the organizer recommends — details vary by race.
Find races near youGetting there
This event is listed in Llanberis, Wales. Confirm the exact start venue, parking, and transit options on the official registration page.
Registration is handled by the official event organizer
Know a local group? Host a community run in Llanberis
