Trail Running calendar near Llanberis 2026-2027

We have found 147 Trailruns within 80 miles of Llanberis. 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.

A professionally guided, fully supported three day route from Capel Curig visiting major ranges in Northern Snowdonia. The loop is just over 100 km with about 9,000 m of ascent across 47 summits, run in small groups with a six person maximu..

A two-lap, five mile trail race through Alderley Park on 21 July 2026 with chip timing and a technical finisher t-shirt. The event offers prize categories for overall and veteran finishers and on-site facilities including free parking and b..

On 25 July 2026 run along a scenic disused railway beside the River Severn between Ironbridge and Bridgnorth, with distances from 9 miles to a 37 mile ultra. Expect out and back laps, regular aid stations and big local support.

August 2026

A long-established challenge in northeast Wales with three upland route options that follow the Offa's Dyke Path over Moel Famau. Walkers and runners are welcome and entries include route description, checkpoint refreshments and a certifica..

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.

Final event in the Phoenix Running 2026 Summer Series at Chorlton Water Park. Timed laps on a 5.3 km out and back riverside course let participants cover distances from 5 km up to ultra and all finishers receive a bespoke medal.

A 130 mile non stop canal towpath race from Liverpool to Leeds, open to runners aged 20 and over. Supported and limited unsupported entries are offered, with regular feed points and a 40 hour time limit.

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, an epic circa 100 mile mountain race across Snowdonia Eryri with about 5,172 m of ascent and a 42 hour cutoff. Limited to 250 runners, this self navigation ultra rewards seasoned trail and mountain runne..

Tackle a rugged 45 mile mountain ultra around Snowdonia's iconic peaks, starting and finishing in Betws y Coed. Expect big climbs, dramatic scenery and a tight 500 runner field for a true mountain running test.

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.

RunThrough Snowdonia Sea2Sky in Barmouth invites trail runners to tackle coastal paths and climb Cadair Idris with 12 km, 25 km and 54 km options. Expect stunning views, waymarked trails, chip timing and a lively event village.

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 on 12 September 2026 across the 15 Welsh 3,000 ft peaks in Snowdonia, covering about 30 miles with 4,000 m of ascent. Not a race; transport, guide and support vehicle included, minimum age 18.

A one lap *10K* trail run through Yarrow Valley in September, with leafy woodland paths, riverside sections and river crossings. Post run gathering at the Flaming Grill Pub, medals for finishers and prizes across multiple categories.

Brutal Extreme Triathlons in Llanberis, North Wales challenge athletes with a lake swim, tough open road bike laps and a final climb of Snowdon via the Llanberis Path. Enter solo or as a relay team and test your limits on wild terrain.