Trail Running calendar near Caernarfon 2026-2027

We have found 181 Trailruns within 80 miles of Caernarfon. See below where and when you can find the races.

A 13.8 mile off road half marathon from Moel y Parc summit along Offa's Dyke to Prestatyn beach, with 2450 ft ascent, two feed stations and electronic timing.

A 10 mile spring trail race around Rivington with woodland and moorland trails, timed results, medals and prizes on 11 April 2027.

A 50 km women focused event in Pwllheli on 17 April 2027 with a strict no-crew policy, minimum age 18, limited refund rules, and recommended third-party insurance.

A 102 mile trail ultramarathon around Chester with 1590m ascent, 12 supported checkpoints, live GPS tracking and a 32 hour cut off.

Coastal ultra routes from Prestatyn to Bangor with 50 km (54.8 km) or 100 km options, aid stations, tracking, chip timing and mandatory kit checks.

Trail running at Delamere Forest on April 25 2027 with 10K, 21K and 42K routes through forest, Blakemere Moss and the Sandstone Trail. Routes are marked, a GPX file is provided, and an event village offers food and finish line goodies.

An endurance event in Llandegla Forest featuring repeated approximately 5.33 km forestry laps on the hour until one runner remains.

The HOWUM in Llanidloes on May 1, 2027 offers Full and Half event options; entries are currently marked sold out with a waitlist listed.

May 2027

Trail races at Brockholes Nature Reserve near Preston offering 10k, half marathon, marathon and timed ultra options on a lap based course.

24 hours solo and team ultra along the Offa's Dyke National Trail from Nova Centre Prestatyn with GPS tracking, six checkpoints and preplaced drop bags.

Multiple distances on a 5K loop at UCLAN Sports Arena in Cottam, from 10K to ultra with a six hour time limit on a marked off road and paved course.

115 km multi-discipline race from Abersoch beach to Snowdon and back, featuring a sea swim, mountain ascent and return bike with a beach finish.

Trail races around Moel Famau in the Clwydian Range offering Marathon, Half Marathon and 10k on hilly off-road routes. Checkpoints provide refill taps, mandatory safety kit is required and canicross entries are accepted.

Off road 10 km alongside the Llangollen Canal with a kids 1 mile race; chip timed event with finisher medal included and a feeding station on course.

A measured, chip-timed 5k through Middlewich canals and trails with a family fun run on the cricket pitch; medals, goody bags and age-group prizes for finishers.

Multiple distance running event in Avenham Park, Preston with 10K, half, marathon and ultra on marked hard surface loops and post race refreshments.

A measured 50 km route from Telford Town Park to Shrewsbury that passes historic sites such as Ironbridge, Buildwas Abbey and Wroxeter Roman City. The event features chip timing, five nutrition stations and a bespoke finish medal.

A 5 km muddy obstacle course at Birkenhead Park featuring climbing, crawling and sliding. Organised by Cancer Research UK, the event uses staggered wave starts and requires participants to be 13 or older.

A fully supported trail running event in May 2027 along the way-marked Heart of Wales Line Trail from Llandrindod Wells to Craven Arms, offered in **50 miles**, **26 miles**, and **16 miles** distances.

Three trail races of 50, 26 and 16 miles along the final sections of the Heart of Wales Line finishing at the Shropshire Hills Discovery Centre.

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