Trail Running calendar near Morfa Nefyn 2025-2026

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

Join the Chester Round the Walls Race on Friday 26 December at Chester Racecourse for a festive 6 km run along the riverside and around the iconic city walls. Competitive prizes and a commemorative finisher item await runners aged 16 and ov..

Join the Pier Gates Remembrance Race on 27 December in County Wicklow to honor IMRA members with a scenic run along Earl's Drive. Fancy dress is encouraged and multiple distances plus post race prizegiving make it a festive, welcoming outin..

January 2026

Explore the wild Elan and Claerwen Valleys in the Reservoir Roundabout, an annual 12 or 20 mile walking and running challenge across upland terrain. Waymarked but requiring map skills, it is volunteer run with proceeds to local charities.

Join a guided 12 km trail run from Pwll Glas exploring Eyarth Rocks and Graig Wyllt nature reserves, with varied terrain and gentle climbs. Enjoy scenic views and planned stops while running with a friendly group.

Take on Tour De Yr Wyddfa in North Wales on 24 Jan 2026, a rugged mountain challenge from Llanberis with a 43.5 km route and 2327 m ascent. Half, relay and pair entries available; strong mountain experience and winter kit required.

Explore the Shropshire Hills from Carding Mill Valley with marathon, half marathon or 10k routes across The Long Mynd and National Trust terrain. Enjoy stocked aid stations, a medal and a fun cake competition after your run.

Ras Tarrenhendre Fell Race in Abergynolwyn, Wales on 31 January 2026 is a rugged 6 mile test with about 2000 ft of ascent across ridges, forestry and old slate quarries. Expect steep climbs, exposed summit running and a moorland descent.

February 2026

Tackle the Chester Ultra 50 mile trail around Chester, linking the Sandstone Trail, Delamere Forest and Helsby Hill within a 17 hour cut off. The 2026 event is sold out and mandatory kit plus a GPS tracker are required.

UTMB Index

Castle 2 Castle Ultra is a 32 mile ultramarathon from Powis Estate to Caffi Wylfa, taking runners over fast paths and rolling footpaths with scenic castle views. Finishers get a celebratory plate and goodies and top three men and women win..

Tackle the 25 mile South Shropshire Circular from Minsterley Village Hall, a navigational challenge across scenic hills with checkpoints and a 10 hour limit. Organised by LDWA and currently full with a waiting list.

March 2026

Join a scenic half marathon from Cwt Tatws to Aberdaron along coastal and quiet inland trails for stunning views and a friendly vibe. Finishers get a Celtic medal and event tee while supporting The DPJ Foundation and Neuroendocrine Cancer U..

Hit the trails at Loggerheads Country Park with 5 km, 10 km and Canicross routes over riverside paths, rocky sections and a set of steps to conquer. Organised event with on site facilities and great reviews.

Tackle a scenic but testing 6.8 km fell course around Dolgarrog with 417 m of climb, hosted at Canolfan Porthlwyd. Entry on the day; minimum age 16 makes it perfect for adventurous runners.

Trail races in the Cambrian Mountains at Nant Yr Arian include a half marathon, 10 km and junior races on road free, waymarked routes. Run by Aberystwyth Athletic Club, the event supports local charities and offers food and race merch.

Canicross on Saturday and trail races on Sunday at the private Brynkinalt Estate in Chirk, with scenic approx 5k and 10k routes over footpaths, grass and climbs. Festival vibes, photos and results add to the experience.

Take on the Black Mountains at the Beast of the Blacks on 14 March 2026, choosing 17 km, 32.5 km or 65 km routes. Fully marked trails, stocked checkpoints, camping and canicross friendly support make it a must for trail runners.

Take on the Ras yr Aran fell race in North Wales on Saturday 21 March 2026 from Llanuwchllyn near Bala. The senior course is 16.1 km with about 945 m of ascent for a scenic but demanding mountain challenge and a junior race is offered.

Join a friendly, inclusive trail challenge at Moel Famau on 28 March 2026. The Piece of String race at Bwlch Penbarras is a surprise 6 to 12 km hill run with canicross first and a medal and chocolate for finishers.

Guided recce of the Glyders from Capel Curig, 15 km with 1,830 m of ascent, led in small groups by Mountain Leader qualified guides. Ideal for fell runners wanting a taste of the Paddy Buckley Round on 28 March 2026.

Join a guided recce of the iconic Paddy Buckley leg from Ogwen Valley to Capel Curig in Snowdonia, covering 16 km with 1,245 m of ascent. Small groups led by experienced mountain leaders deliver a scenic, challenging day on classic Welsh pe..