Trail Running calendar near Llanfairpwllgwyngyll 2025-2026

We have found 128 Trailruns within 80 miles of Llanfairpwllgwyngyll. See below where and when you can find the races.

Join the Dark Side Of The Combe on Mon 31 Aug 2026 in the Lake District as part of the Black Combe Country Fair at Bootle. This 12.5 km fell race with 625 m ascent is a tough, scenic test and has on the day entry.

September 2026

Take on the stunning coastal challenge of the Ring O' Fire Race Series on Anglesey, with the epic Ring O' Fire 130, a new relay format and the Firelighter 50. Entries are open and race services cover maps, checkpoints and bag transfer for a..

Tackle the epic 102 mile Yr Wyddfa Snowdon Ultra, a self navigation race through Snowdonia on 5 September 2026 with a 42 hour limit. Mountain experience and solid map skills are required for this tough, remote challenge.

Tackle a 45 mile mountain ultramarathon in Snowdonia, summiting Yr Wyddfa and crossing iconic peaks for spectacular but demanding terrain. Limited to 500 entrants, this scenic challenge rewards grit and mountain skill.

Tackle the wild Shropshire Hills at Carding Mill Valley with scenic 13.1 mile and 26.2 mile trail races through the Long Mynd. Well marked routes, aid stations and marshals make this a classic, challenging day out for trail runners.

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

Take on the Welsh 3000s in a guided 30 mile mountain run across all 15 peaks of Snowdonia, including the dramatic Crib Goch traverse. This non competitive supported run includes guides, transport and food stations for a mountain experience.

The Spirit of Axnfell will take place in Isle of Man on Sunday 13 September 2026. You can run 32 kilometers.

Run the scenic 361° Abersoch Half Marathon along the Llyn Peninsula, finishing with the final kilometre on Abersoch Beach amid cheering crowds. Part of the Abersoch Triple Crown, this seaside race blends road pace with coastal charm.

Run the wild Wicklow hills at EcoTrail Wicklow on 26 September 2026, a trail focused on rich natural terrain and breathtaking views. With distances from intimate 10K up to a challenging 80K, there is a course for every trail lover.

UTMB Index

The North Barrule will take place in Ramsey on Saturday 26 September 2026. You can run 5 kilometers.

October 2026

A challenging 10 km uphill only race from Ruthin to the Jubilee Tower on Moel Famau, finishing above 550 m with sweeping hilltop views. Open to walkers and hill runners, it pairs a tough ascent with a memorable mountain finish.

Tackle a stunning 32 mile loop through the Cambrian Mountains, with lake views, forest tracks and fully marked, supported trails. Limited to 100 runners, a festival weekend at Camp Plas offers camping, live music and post race food.

Take on Twin Peaks and Ras Consti in Aberystwyth for a coastal trail that climbs Pen Dinas and Constitution Hill. Senior race is 11.7 km with great views and junior races welcome ages 7 to 15.

Run scenic trails at Loggerheads Country Park with Loggerheads Autumn Trails, featuring 6 km, 12 km and canicross options for all abilities. Family friendly, fully marked routes and no time limits make for a relaxed autumn run.

Tackle the Brenig Way 50 km trail, a scenic endurance run from Corwen to the dam at Llyn Brenig through forests, riverside paths and technical climbs. Electronically timed with GPS trackers and aid stations, it is a rugged yet well supporte..

The James Coulson Laxey Fell will take place in Laxey on Saturday 24 October 2026. You can run 13 kilometers.

November 2026

Run through Newborough Forest and Llanddwyn Island on scenic 10K and half marathon routes with sandy beach sections and views across the Menai Strait to Snowdonia. Celebrate in the event village and claim your bespoke finisher memento.

Take on the Slate Trail Ultra in Snowdonia from 14 to 15 November 2026, with 80 km or 147 km routes that traverse dramatic coastal and mountain trails. Marked aid stations and UTMB points make this a true test of endurance.