Trail Running calendar near Llanfairpwllgwyngyll 2025-2026

We have found 135 Trailruns within 80 miles of Llanfairpwllgwyngyll. See below where and when you can find the races.

Challenge yourself across the iconic Welsh 3000s in Snowdonia on a guided, non competitive ultra that covers all 15 peaks, about 30 miles and 4,000 m of ascent. Qualified mountain leaders, transport, support vehicle and food stations make t..

Join a guided mountain run on the Snowdon Range on 14 June 2026, covering 20 km with 1,900 m of ascent between Beddgelert Forest and Llanberis. Small groups led by qualified mountain leaders offer a focused recce of one leg of the Paddy Buc..

Ultra Wales is an epic 51 mile mountain and trail race around Coed y Brenin in Southern Snowdonia, climbing 2,898 m and taking in peaks like Cadair Idris. Limited to 500 runners with a 20 hour cutoff and live GPS tracking.

UTMB Index

Take on a scenic 10k around the Lake Vyrnwy estate, tackling varied trail surfaces with stunning lake views and rolling climbs. Friendly race day vibe, finisher medal and post race treats make this an ideal early summer challenge.

Enjoy a scenic 10k around the private Lake Vyrnwy estate in Llanwddyn on Sunday 21 June 2026, with mixed trails, lakeside views and challenging climbs. Finishers get a medal and post race goodies.

Tackle Aggie's Staircase, a scenic 4 mile fell race around Darwen with three tough climbs including Jubilee Tower and Jacobs Mound. Expect moorland views, rocky descents and a classic fell race atmosphere organised by Darwen Dashers.

The Cringle Hill Fell Race will take place in Isle of Man on Saturday 27 June 2026.

July 2026

Run around 27 miles of mountain terrain to the source of the River Severn, climbing Plynlimon before following riverside paths into Mid Wales. Part of the MTC Severn Challenge, this scenic ultra offers rugged views and checkpoint support.

Run a five day, 220 mile ultra along the River Severn, following the Severn Way with rugged, sometimes overgrown trails and GPX navigation provided. Each day is a separate race with bespoke medals and a big trophy for completing all five.

Take on the Stiperstones Fell Race in Snailbeach on Wed 8 Jul 2026, a rugged 6.7 km course with about 375 m of climb across classic Shropshire ridgelines. Pre entry is £7 or pay £10 on the day, with junior races available.

Tackle the 48 mile MTC Severn Plod Ultra, a point to point scenic ultramarathon from Mid Wales to Shrewsbury along river paths and country trails. Expect rugged terrain, checkpoint support and an unforgettable challenge for experienced runn..

Tackle the scenic 59 mile Severn Path Ultra on 10 Jul 2026, a point to point run from Shrewsbury to Worcester along River Severn. Enjoy riverside views, rolling terrain, supportive checkpoints and a bespoke finisher medal and head visor.

Run through the wild beauty of Eryri at the Snowdonia Trail Marathon in Llanberis, with distances from 10K to a 57 km ultra offering panoramic climbs and rugged trails. Enjoy a lively event village, chip timing, and support on course.

UTMB Index

Take on Snowdon in a thrilling 24 hour ultra where runners aim to ascend and descend the peak as many times as possible. Solo and team relays in a UTMB indexed event combine stunning mountain scenery with a lively festival vibe.

Explore the Shropshire Hills at The Piece of Cake Trail Run in Carding Mill Valley on 11 July 2026, with 10 km, half and full marathon options. Marked routes, finishers medals and a fun cake competition await.

Take on the legendary Welsh 3000 Challenge across all 14 Snowdonia peaks in one epic outing or over 2 days. Guided groups, checkpoints and return transport help you tackle rugged ridges and 50 km with 4000 m of ascent.

Tackle the legendary Paddy Buckley Round in a guided, fully supported three day traverse of northern Snowdonia, visiting 47 summits and wild ridge lines. Perfect for experienced mountain runners seeking a big, guided challenge.

August 2026

Open to Offas on 8 August 2026 from Cilcain Village Hall invites runners and walkers to follow the Offa's Dyke Path over Moel Famau. Pick 16, 24 or 32 mile routes through the Clwydian Hills with checkpoints, refreshments and a joyful finish..

Ribble Runfest in Preston on 9 August offers flat, looped routes through Avenham and Miller Parks and along the River Ribble, with distances from 10k to ultra. With a small field of 100, stocked aid stations and finisher medals, it is a sce..

A sharp 4.4 km fell race from the Ragleth Inn in Little Stretton featuring 390 m of climb and great ridge views; a fast, testing course for keen fell runners. Pre entry via SI Entries or entries on the day are welcome.