Trail Running calendar near Llanberis 2025-2026

We have found 138 Trailruns within 80 miles of Llanberis. See below where and when you can find the races.

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.

Enjoy the Feisty and Fluffy Phoenix Run in Manchester, a flat off road riverside loop with a minimum 3.28 mile lap or run as far as you can in seven hours. First 50 sign ups who complete a lap earn a limited edition Phoenix soft toy and the..

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..

Take on the finale of the Shropshire Winter Series at Ercall Wood, a tough 8.8 km fell race climbing 519 m on scenic Ercall Hill. Pre entry or on the day entries accepted and junior races run for ages 12 to 17.

April 2026

Join Winter Hill Runners for Curley's 5km Trail Race on 1 April 2026, a short scenic run around Horwich starting and finishing at the Jolley Crofters pub. A fun off road blast perfect for all abilities and a great excuse for a post run pint..

The Aberdyfi Half Marathon will take place in Aberdyfi on Saturday 4 April 2026.

UTMB Index

Run the Summit 2 Sea off road half marathon along the Offa's Dyke Trail from Moel y Parc to Prestatyn beach. About 13.8 miles of rewarding climbs and a big descent to sea level with stunning views and a real sense of adventure.

Take on the Llangollen Fell Race on 12 April 2026 with three scenic but testing routes from 5 miles to 28 km across the North Wales hills. Race HQ serves tea, coffee and cakes and entry is open in advance or on the day.

Take on a Skyrunning challenge through the wild Ogwen Valley with technical trails, dramatic ridgelines and sweeping mountain views. Pick 15 km, 25 km or 40 km and enjoy a lively event village at Plas y Brenin with music, food and bilingual..

UTMB Index

Enjoy a scenic 10 mile trail around Rivington Village, White Coppice and Wheelton Plantation on 12 April 2026 with chip timing and bespoke finisher medals. Competitive prizes for top and masters age category finishers add extra incentive.

Tackle a classic spring fell race in Mow Cop on Sun 12 Apr 2026: 10.5 km with 400 m of climb across stirring hill terrain. Entries on the day for adults 18 and over, with team scoring and friendly club spirit.

Take on the inaugural MTC Gelert 47 mile ultra from Barmouth to Llanidloes on 16 April 2026, the third day of the MTC CYMRUN end to end. Limited field, bespoke medal for all finishers and real time tracking for supporters.

Chester Ultra 100 is a 102 mile trail challenge around Chester on Saturday 18 April 2026, linking canals, the Sandstone Trail and Delamere Forest. Expect rugged scenery, live GPS tracking and buckle awards for finishers.

Join the Shropshire Way 80K Festival on 18 April 2026 in the Shropshire Hills for one day of trail running and walking across hill summits, ancient woodland and market towns. Choose routes from 10K to 80K, enjoy local food on course and sup..

Take on a scenic 8.6 mile loop around Trawsfynydd Lake in Snowdonia, a mixed tarmac and trail course with one testing hill and 175 m of ascent. All entry funds support the volunteer South Snowdonia Search and Rescue Team.

Join a guided 14 km trail run in peaceful Penllyn Forest on 19 April 2026, exploring quiet tracks between Bala and Lake Vyrnwy. Expect a led run with scenic stops and friendly company in person.

Run the 10k Red Squirrel trail through Ainsdale National Nature Reserve, across wooded paths and dune climbs with a chance to spot wildlife. Proceeds support Southport Stronger Together.

Run the stunning North Wales coast from Prestatyn to Bangor in the North Wales 50km and 100km ultramarathons on 25 April 2026. Expect flat coastal miles, inland hills and iconic sights like Conwy Castle and the Great Orme.

Join the Corvedale Cake Walk for scenic 10 or 22 mile routes around Abdon Burf and Wenlock Edge, with stunning Shropshire views and friendly checkpoints. Finish with cake and hot drinks while supporting local church communities.

Run Delamere Forest on 26 April 2026, choosing 21k or 42k over undulating woodland trails that pass Blakemere Moss, the Sandstone Trail and Old Pale Hill. Enjoy marked kilometres, aid stations and classic forest scenery.