Trail Running Calendar Wales 2026-2027

A 102 mile self navigation ultramarathon across Snowdonia Eryri with 5,172 m of ascent, 11 checkpoints and a 42 hour cut off. Entrants need prior 50 mile ultramarathon experience, mandatory mountain kit and GPS tracking.

A 45 mile mountain ultramarathon around Snowdonia based at Betws y Coed with ridge trails, five staffed checkpoints and live GPS tracking. Entry for 2026 is full and participants must meet qualifying criteria and carry mandatory mountain ki..

Trail races from Barmouth beach to Cadair Idris across coastal, forest and mountain terrain, offered in three distances with marked routes, GPX files, marshals, chip timing and post-race refreshments.

A single hill fell race over a classic horseshoe route to Waun Fach covering 11.2 km and 610 m ascent, based at Dinas Castle Inn with marshals, first aid cover and a maprun variant for solo or paired efforts.

A 14.5 km fell race with 855 m of ascent over upland moorland and rough off road terrain. Competent navigation and mountain skills are required; entry is limited and includes a soup roll and electronic timing.

A multi stage mountain ultra across Wales offering a six day Full Dragon of 380 km and 16,400 m ascent plus two day and partial route options. Navigation is unmarked; organisers provide a paper map, GPX files and a safety GPS tracker.

A 24 hour loop race at OnePlanet Adventure in Llandegla, Wales. Individuals or two person teams run as many 3 mile laps as possible on forest trails with about 144 m elevation per lap.

A guided mountain run across the 15 Welsh peaks above 3,000 ft in Snowdonia, covering about 30 miles with 4,000 m of ascent. Transport, guides and food stations are included and the event has a minimum age of 18.

Run as far as you like at Alice in Runderland, a timed multi lap event at Parc Taf Bargoed with flexible start times and on course support. Choose from one lap up to marathon and earn a bespoke finisher medal.

An 8 km mountain race over the three peaks of the Eifl near Pwllheli with about 490 m of ascent. Main race for over 16s with entry on the day £10; junior races are held with a £3 entry.

A partly marked fell race from the Raven Inn, covering 11.25 km with 445 m ascent. Day-entry only at £5, minimum age over 18, and participants should allow about 15 minutes to walk to the start.

A long, non-commercial fell race in the Black Mountains with a 27.4 km route and 1586 m of ascent. The event uses five checkpoints, requires full navigational kit, and operates on open access land with no on-course water provided.

A half marathon trail across the Clwydian Hills to the summit of Moel Famau, featuring about 21.4 km and 750 m of ascent. Staggered starts aim for a shared sunset summit and canicross entries are welcome.

A 12 km canitrail and trail run in Ogmore Vale on 13 September 2026 supporting PAPYRUS Prevention of Young Suicide, held at Halo Ogmore Valley Life Centre with a listed ticket price of 26 GBP and a no refunds policy.

A 12 hour Backyard Ultra on a 4.2 mile loop near Crickhowell in the Black Mountains. The final lap is run in reverse as a sprint to decide male and female winners; medals are awarded for 32 miles or more.

Multi-distance triathlons around Llyn Padarn with a mountain section on Snowdon. Solo and team entries available, with mandatory support crew for double and triple distances and compulsory safety kit for all athletes.

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 15.5 km fell race with 840 m of climb near Glyntawe. The route includes exposed ridges and technical sections so advanced navigation and mountain skills are required.

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.