Trail Running calendar near Llanberis 2025-2026

We have found 102 Trailruns within 80 miles of Llanberis. See below where and when you can find the races.

The Moel Famau Festive 'Piece of String' Race is a unique running event held on the last Saturday before Christmas at Bwlch Penbarras. Participants can expect a surprise distance and route, ranging between 6 and 12 kilometers, which will be..

Tackle the Midwinter Mortimer Trail on 27 December 2025, a scenic mixed surface challenge from Ludlow Castle to Kington through forests, limestone tops and ridges. Choose the 30 mile Ultra or the Croft 15 for a memorable winter adventure.

January 2026

Take on upland trails in the Elan and Claerwen Valleys with an annual 12 and 20 mile walking and running challenge. Parts of the route are waymarked and map reading skills are needed; route maps and GPX files are sent to entrants in advance..

The Holly Challenge is a multi-distance race organized by How Hard Can It Be Events, held at Burroughs Bank, Lightmoor, Telford, TF4 3QS, within the Lightmoor Nature Reserve. Runners can choose 5K, 10K, half marathon, or marathon distances...

Run Petzl Night Runner Rivington on Winter Hill at night, the series finale with reflective course signs and radio mast views. Pick 10k or half on rough off road terrain, earn a glow in the dark medal and bring kids for a free 1k.

Take on the epic Tour De Yr Wyddfa with 43.5 km and 2327 m ascent around the mountain on 24 January 2026, or opt for a shorter Llanberis to Pen y Pas half, relay or pair entry. Organized by Eryri Harriers for experienced mountain runners.

Run the rugged Shropshire Hills at Carding Mill Valley with The Icing on the Cake, choose a half loop or the full double lap. Waymarked National Trust trails, on course support, a finishers medal and a cake competition make it rewarding.

February 2026

Join the Anglezarke Amble, a scenic challenge from Rivington across moorland to Winter Hill and reservoirs. Pick 17 miles or 24 miles where runners may use the longer route, enjoy checkpoints with refreshments and a finisher's certificate.

Explore the Severn banks on the Winter Railway Ultra, a scenic multi distance trail along a disused railway through Ironbridge to Bridgnorth. Choose from 9 to 37 miles and soak up industrial heritage on this unique February run.

Tackle a 50 mile trail ultra around Chester, winding along canal towpaths, Delamere Forest and the Sandstone Trail with Helsby Hill and Frodsham views. Expect rugged trails, friendly checkpoints and a true endurance challenge.

UTMB Index

Castle 2 Castle Ultra is a sold out 32 miles run from Powis Estate in Welshpool to Caffi Wylfa in Chirk, blending fast flat paths, rolling footpaths and open views. Prizes await top finishers and everyone gets a finisher plate and goodies.

March 2026

Cloud 9 is a scenic 9 mile fell race from Congleton to Bosley Cloud and back via the Bridestones with about 1250 ft of ascent. Off road, chip timed and well marshalled, it supports the National Trust.

Explore riverside paths and rocky trails at Loggerheads Country Park with 5 km, 5 km canicross and 10 km options on 7 March 2026. Varied terrain, steps and scenic views make this a fun and rewarding challenge for runners and their dogs.

Take on the Granny's Bay Challenge, a scenic six hour timed run along flat tarmac paths of the Ribble estuary near Lytham St Annes. Run as many laps within six hours; one lap earns a finisher medal and entries are limited to 100.

The CODopoly Triple is a friendly multi day running event in Shropshire where you can run one, two or all three days. Choose 8 mile, half marathon or marathon courses and soak up Ironbridge and south Telford views at The Unicorn Inn.

Enjoy scenic trails at Nant Yr Arian on 14 March 2026 with half marathon, 10 km and junior races. Waymarked routes, marshals and a village with food and coffee make this charity trail a great day out.

Join the Brynkinalt Running Festival on 14 and 15 March 2026 at the scenic Brynkinalt Estate for canicross Saturday and trail runs Sunday with 5k and 10k options. Expect estate footpaths, views, music, a finisher medal and podium prizes.

Take on the Beast of the Blacks in the stunning Black Mountains of Wales with 11, 20 or 40 mile trail options, fully marked and well supported. Canicross friendly and rich with aid stations and great views for all abilities.

The Moel Famau Easter 'Piece of String' Race is a fun and inclusive outdoor event held at the start of the Easter holidays. Participants can enjoy a scenic run on the region's popular hill, with routes ranging from 6 to 12 kilometers that a..

Join a guided recce of the Glyders between Llanberis and the Ogwen Valley, covering 15 km with 1,830 m of ascent in Snowdonia. Small groups led by qualified, experienced runners set out from Capel Curig for a rewarding mountain day.