Snowdon24

Name: Snowdon24
Start: 2026-07-11
End: 2026-07-11
Location: Llanberis

JUL

2026

Take on Yr Wyddfa in Snowdon24, a 24 hour ultra trail challenge from Llanberis where runners aim to climb and descend Snowdon as many times as possible. Solo and team entries welcome, with full support, tracking and stunning mountain scenery.

Sat 11 Jul 2026

Llanberis, Wales

Website Registration

100 miles 100 kilometers 50 kilometers

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Event overview

Yr Wyddfa | Snowdon24 is a 24-hour ultra trail running challenge held in Eryri (Snowdonia). The event takes place at Y Ganolfan, Llanberis, UK, on 11–12 July 2026. Participants run from the foot of Yr Wyddfa (Snowdon), which has a summit elevation of 1,085 m (3,560 feet), and aim to ascend and descend the mountain as many times as possible within 24 hours. The event is UTMB-indexed. The current solo record is eight full ascents. The official charity partner is Cancer Research Wales; fundraisers for other charities are also welcome.

Format and support

The event offers solo and team entries. Teams may include up to five people and use a relay format, with each team member contributing laps. Race services listed for participants include an event village with toilets and food, rest areas and tent pitches, on-course marshals and Mountain Leader support, chip timing with tracking and online results, and finisher mementos. Event operations are bilingual in English and Welsh. Visit the organization's website for the most recent information.