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UTS 100K

Starting on Saturday morning, UTS 100K covers the highlights of the mountainous areas of northern Eryri (Snowdonia), taking in countless stunning trails, technical ridges and epic views.

Race Category

ws100KM

Running Stones

3

Finals Access

100k-direct-entry

Distance

100 KM

Elevation Gain

4400 M+

Start Date

Saturday 16th May 2026

Race Start

Llanberis - 05:30

Max Allowed Race Time

30 Hours

Challenge yourself in the mountains of Eryri (Snowdonia) National Park

The UTS 100K is a formidable journey across the northern mountains of Eryri National Park, offering an "alpine-scale" ultra experience in North Wales. Beginning in Llanberis, participants set out on a course that is both beautiful and technical. The route immediately immerses runners in the rugged grandeur of the region, tackling some of the most prominent peaks and climbs.

As the race unfolds, you will be treated to epic views from iconic summits and challenged by trails that includes technical scree, rocky paths, and even a bit of scrambling. You will navigate through stunning landscapes, passing by glacial lakes and through remote valleys, where the sheer scale of the mountains becomes apparent. The course, while scenic, is designed to test every aspect of an ultra-runner's physical and mental fortitude within a 30 hour time limit. With relentless elevation gain and selected runnable sections, the UTS 100K is a true mountain odyssey.

Challenge yourself in the mountains of Eryri (Snowdonia) National Park