Trail Running Calendar Wales 2026-2027

Three long distance mountain trail races around the Bannau Brycheiniog starting and finishing in Brecon, offering 100 km, 75 km and marathon distances with substantial ascent and on-course support.

Experience an epic guided traverse of the fifteen 3000 foot peaks in Snowdonia. This 48 km mountain run includes 4000 meters of elevation gain across three iconic ranges with full support and logistics provided.

Experience 30 miles of Welsh beauty on a circular route from Llanidloes. This inclusive trail event features 4,356 feet of elevation gain with no time limits and fully stocked checkpoints.

A Pretty Muddy 5k obstacle course at Coopers Field, Bute Park on 02 May 2026 where participants climb, crawl and slide to raise funds for cancer research. The event has a £50 minimum fundraising target and is for ages 13 and over.

Cwmdu is a 15.9 km fell race near Crickhowell with 920 m of climb over Pen Tir and Mynydd Troed. The route requires navigation and mandatory kit; entry fees include tea and cakes.

A guided recce of the Paddy Buckley leg from Capel Curig to Nantmor across the Moelwyns, covering 35 km with 2,500 m of ascent on 3 May 2026. Small groups led by Mountain Leader qualified guides; entry fee £95 and minimum age 18.

The Sirhowy Challenge is a 10 mile multi-terrain race featuring a 1,500ft climb to Machen Trig Point. Participants enjoy a scenic loop through the Sirhowy valley with awards and a finishers social at the local club.

A 13.4 km fell race around Talgarth with 610 m of ascent. The course is partially marked and requires navigation; entry is £10 pre entry or £15 on the day and the event is insured by the WFRA.

An annual off-road race day around Chepstow Park Woods starting and finishing at Hood Memorial Hall, Devauden. Distances include 10k, 5k, 2.4k for ages 8 plus and a 60m junior dash with a small donation on the day.

A 5.1 km fell race at Fairy Glen near Penmaenmawr with 273 m of climb, part of the North Wales Mid Week Series. A juniors programme has multiple age classes and race day entry is £2.

A 6.9 km running event at Ysgol Dinas Bran in Llangollen with 350 m of ascent. The course is partially marked, minimum age over 16, day-entry fee £5, with refreshments plus showers and changing available.

A three-person relay at Chirk Castle on 7 May 2026 where each runner covers an approximately 2 mile lap. Categories include male, female, mixed and juniors aged 14 to 17, with category prizes and online results.

Run 24 hours along Offa's Dyke National Trail from Prestatyn on May 9 2026. Solo and team entries offer a continuous coastal to countryside challenge with staffed checkpoints and a finishers medal to mark your achievement.

A 10 hour loop race on Mynydd Troed with steep climbs, technical descents and marked clip stations. Open to solo runners, pairs and teams of four, with mandatory kit and a strict 10 hour cutoff.

A Welsh trail event offering a 100-mile loop from Abergavenny and a 100 km route from Talgarth to Abergavenny, both following Offa’s Dyke, Cambrian Way and Beacons Way across mountain terrain.

A 115 km multi-discipline race from Abersoch Beach to Snowdon summit and back, combining a sea swim, road cycling and a mountain ascent via The Watkin Path. The 2026 event reached a 400-person capacity and is currently sold out.

A set of off-road fell races in the Preseli hills featuring a 10.8-mile Bach and an approx 24-mile Beast with substantial ascent, marked and partly supported courses, category prizes, and WFRA safety and kit requirements.

A three-stage route linking Snowdon, Cadair Idris and Pen y Fan across North, Mid and South Wales, covering about 17 miles and 2,334 m of ascent in roughly 19 hours. Options include guided events with leaders and transport or self-organised..

A 12.8 km fell race near Llanberis with 915 m of climb, a ridge route over Moel Eilio, Foel Gron, Foel Goch and Moel Cynghorion, and navigational challenges in poor visibility. Registration is at The Heights Hotel.

A recce of the Paddy Buckley leg from Nantmoor to Beddgelert Forest over the Hebogs, covering 15 km with 1,580 m ascent in Snowdonia. Small guided groups led by Mountain Leader qualified runners, age 18 plus, entry fee £65.