Anglesey Trail Half Marathon

Llanfairpwllgwyngyll, United Kingdom • 1 Nov 2026

Anglesey Trail Half Marathon & 10K : Newborough Forest and Llanddwyn

The Anglesey Trail Half Marathon & 10K is a trail running event held in Newborough Forest and Traeth Llanddwyn, Anglesey. The published date for the event is 01 Nov 2026. It is described as the sister event of the Jones o Gymru Anglesey Half Marathon.

The course runs through forest tracks onto Llanddwyn Island and winding woodland trails. Runners encounter single-track forest trails and sandy running sections, with views that include the Llyn Peninsula and the mountains of Eryri (Snowdonia). The 2025 edition of the event sold out.

Distances:

  • 10k
  • Half Marathon (21.1 km)

Event logistics and services listed for participants include a lively event village with music, commentary, shopping, food, bag drop and toilets; on-course support such as marshals, signage, energy stations and support vehicles; and chip timing with live online results. The event also features family-oriented finishes and locally themed finisher mementos. Organisers state that event information, signage and commentary are available in both English and Welsh.

The description focuses on the route characteristics, on-course support and event amenities as provided for these trail distances. Visit the organization's website for the most recent information.

Race information

Half Marathon
Half Marathon
10 km
10k
Visit the organization's website for the most recent information.
Trail runs nearby

A guided traverse of the 14 Welsh 3000 foot peaks covering about 50 km and roughly 4,000 m of ascent, offered as a continuous 20 hour challenge or over two to three days with low ratio guiding and on-route support.

A mountain running event on 18 July 2026 covering 15.35 km with 994 m ascent. Entrants must be 18 or older and have mountain running experience.

A three day, fully guided loop of Northern Snowdonia covering just over 100 km and 47 summits with low guide ratios, daily return to Capel Curig and on route support.

SkyRun Eryri in Rhyd-Ddu, Eryri/Snowdonia stages four mountain races from 16 km to 55 km on 15 August 2026, with large elevation gains, aid stations and a mix of ridgelines, scrambling and technical trails.

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