Trail Running calendar near Dyffryn Nantlle 2025-2026

We have found 115 Trailruns within 80 miles of Dyffryn Nantlle. See below where and when you can find the races.

Tackle trails and a climb to the Iron Age hillfort at Croft Ambrey on 19 July 2026, with 5 mile and 10 mile options. Fully marked courses, water stations and marshals make the scenic Herefordshire challenge welcoming to all abilities.

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.

SkyRun Eryri brings classic Snowdonia skyrunning to Rhyd Ddu with four mountain trail races from a technical 55 km ultra to shorter scenic challenges. Expect rocky scrambles, grassy ridges and towering Welsh 3000s views.

Tackle 130 miles along the Leeds and Liverpool Canal from Liverpool to Leeds in a single continuous towpath race. Limited to 100 entrants with supported and unsupported options, this is a bold ultra challenge for experienced runners.

September 2026

Run Anglesey's rugged coast with Ring O' Fire 130, a 130 mile three day circumnavigation of the island with cliffs, beaches and about 4,000 m of ascent. Or try the Firelighter 50, a near 47 mile coastal challenge finishing in Moelfre.

Take on the Yr Wyddfa Snowdon Ultra 100, a 102 mile mountain ultramarathon across rugged Snowdonia with roughly 5,172 m of ascent and demanding self navigation. Limited to 250 runners, it features checkpoints, live GPS tracking and a 42 hou..

Take on the Yr Wyddfa Snowdon Ultra 50, a rugged 45 mile mountain ultra through iconic Snowdonia peaks including Yr Wyddfa and Tryfan. Expect big climbs, GPS tracking, strict kit rules and a limited field for a true high mountain challenge.

Run the rugged beauty of the Shropshire Hills at Battle of the Borders, starting from Carding Mill Valley and tackling the dramatic Long Mynd ridges. Choose marathon, half marathon or 10K on waymarked, scenic but rewarding trails.

Take on the Stretton Skyline, a scenic yet demanding 30.5 km fell race around Church Stretton with 1357 m of climb and panoramic Shropshire Hills views. Pre entry only, finishers enjoy a tasty goody bag.

The Montane Dragon's Back Race will take place in Conwy from Monday 7 September 2026 to Friday 11 September 2026.

UTMB Index

A guided mountain run in Snowdonia on 12 September 2026 visiting all 15 Welsh 3,000 ft peaks across about 30 miles and 4,000 m of ascent. This non competitive challenge includes experienced guides, transport and food stations.

Run the scenic 13.1 mile 361° Abersoch Half Marathon on the Llyn Peninsula, finishing with a final kilometre across Abersoch Beach. Enjoy music, massages, beach bar and prizes plus medals and tech tees for all finishers.

Run the Pumsaint trail half marathon in Llanwrda, a scenic, hilly route through the Cothi valley that rewards effort with great views. Held each September from Pumsaint Village Hall, it is a perfect challenge for trail lovers.

EcoTrail Wicklow returns on 26 September 2026 for a nature rich trail running day through the Wicklow Mountains. Distances from 10K to 80K offer rugged singletrack, big views and a true outdoor challenge for all levels.

UTMB Index

Run Delamere Forest Wildwood on Sunday 27 September 2026: choose a half marathon or 10K on technical, scenic forest trails with climbs and mud. Canicross option lets you enjoy the race with your dog.

October 2026

Take on the Town to Tower 10k on 3 October 2026, an all uphill 10k from Ruthin to the Jubilee Tower atop Moel Famau. Expect varied trails, steep climbs and stunning summit views in this scenic autumn challenge.

Run a scenic 32 mile loop in the Cambrian Mountains from Camp Plas on 10 October 2026 with a fully marked, well supported course. Enjoy exclusive weekend camping, BBQ, live music and lakeside activities, entries limited to 100.