Snowdonia Trail Marathon Eryri
Llanberis, United Kingdom • 12 Jul 2026
Event overview
The Snowdonia Trail Marathon Eryri takes place on Sunday 12 July 2026 in Llanberis, Y Ganolfan, LL55 4UR. The event is organised by Always Aim High Events and starts and finishes in Llanberis. Courses run through locations in Eryri (Snowdonia) National Park, including Rhyd Ddu, Beddgelert, Nant Gwynant, Pen y Pass, and Yr Wyddfa (Mount Snowdon). The marathon and ultra marathon are listed as UTMB-indexed races. Signage, registration, and commentary are available in English and Welsh. A 500 m kids fun run, the Jones o Gymru Dolbadarn Dash, is held on the event field with a suggested on-the-day donation of £3; proceeds support the Llanberis Mountain Rescue Team. Tickets are currently sold out.
Race details
- 10k - 9.8 km (Early bird £31.99)
- Half Marathon - 12.9 miles (Early bird £44.99)
- Marathon - 27.3 miles (Early bird £59.99)
- Ultra Marathon - 57 km (Early bird £97.99)
On-course support includes marshals, signage, energy stations, and support vehicles. The event village offers music, commentary, shopping, food, kit demonstrations, and toilets. The event provides unique finisher mementos. Professional timing is listed, with chip timing and live online results; specific race timing details are to be confirmed. Visit the organization's website for the most recent information.