Trail Running calendar near Dyffryn Nantlle 2026-2027

We have found 176 Trailruns within 80 miles of Dyffryn Nantlle. See below where and when you can find the races.

A short beach race along Abersoch beach on 19 September 2026 that mixes hard and soft sand and several groynes. Finishers receive a zinc alloy medal and winners earn cash prizes including a course record bonus.

Ras Pedol Peris is an AL Welsh fell race in Eryri near Llanberis on 19 September 2026, visiting major summits including Snowdon. Two course options are offered: a full 28 km with 2600 m ascent and a half 14 km with 1350 m ascent.

A scenic, hilly trail half marathon in the Cothi valley near Pumsaint, offering a 13 mile race, a 6.5 mile alternative and a kids race, based at Pumsaint Village Hall on 20 September 2026.

A multi day continuous 286 km mountain race across Wales with over 11,000 metres of ascent. Enter solo or in teams of three or six; the course links Llanberis, Yr Wyddfa, Cadair Idris and Pen y Fan with five supported checkpoints.

EcoTrail Wicklow on 26 September 2026 in Bray offers trail races from 10KM up to 80KM. Part of the EcoTrail series, the event highlights coastal and mountain routes and includes sustainability measures.

Tower to Castle Ultra 30 covers 30.9 miles from Blackpool Tower to Lancaster Castle with a ferry crossing at Fleetwood, way marked sections and compulsory checkpoints. Pre registration is required and entries close 20 September 2026.

A community fell race in the Ceiriog Valley on 26 September 2026, covering 11.6 km with 425 m ascent. Entry on the day; refreshments, showers and changing facilities are provided at Canolfan Ceiriog Centre.

A fully waymarked sea to summit ultramarathon from Caernarfon Castle to Rhyd Ddu, covering 29 miles with about 5600 ft of ascent. Professional mountain safety and medical teams support runners and finisher medals form part of the Sea to Sum..

Trail runs at Delamere Forest on 27 September 2026 offer a two-lap half marathon and a one-lap 10K over technical wooded trails, with chip timing, aid stations, canicross options, and eco-minded event measures.

Trail running in Blackpool on a 10K loop with longer race options, views of Marton Mere and Blackpool Zoo, drink stations and bespoke finisher medals.

Breidden Hills is an 11.5 km fell race around Criggion, Shropshire with 790 m of ascent. The course is partially marked so navigational skills and kit checks are required, entrants must be over 18 and entry is £8.

A community focused 5 mile mixed terrain race in Rimrose Valley Country Park, Waterloo, Liverpool, with a scenic traffic free course through woodland and canal paths and a themed medal for finishers.

October 2026

An uphill only 10 km from Ruthin to the Jubilee Tower on Moel Famau, featuring mixed terrain and a summit finish above 550 m; transport back to town can be purchased on site.

A 32 mile trail through the Cambrian Mountains from Camp Plas near Dolanog, capped at 100 runners and fully marked with checkpoints and a 14 hour cut off. The weekend includes on-site camping, catering, live music and lakeside activities.

Experience an off road run through the scenic pathways of Rivington starting and finishing at Rivington and Blackrod High School. This trail event is designed for runners with previous half marathon experience.

Experience a multi terrain race over Pen Dinas and Constitution Hill starting from the Aberystwyth Promenade. With distances for both seniors and juniors, runners face climbs on gravel, grass, and rocky paths with coastal views.

Canicross at Pennington Flash Country Park with forest and lakeside trails, mostly flat with some inclines. Two distance options, on-course marshals, and facilities including parking, a café, and toilets.

Trail races at Loggerheads Copuntry Park with a 6km loop, a 12km two-lap option and a 6km Canicross. Courses are marked and marshalled and entry fees range from £19 to £22.

An untimed 5k and 10k adventure run at Lyons Lane Motocross LTD in Shrewsbury on October 17, 2026. The course uses a MotoX track and includes brook crossings, hill climbs, a mud crawl and a water slide finish.

Cadair X is a 13.1 mile mountain half marathon with 1165 m of ascent that climbs to the 893 m summit of Cadair Idris. The marked route crosses woodland, glacial lakes and technical summit terrain and a GPX file is available.

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