Trail Running calendar near Hafren Forest 2026-2027

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.

At Wyre Forest on Saturday 19 September 2026, Lone Wolf Birmingham runs a 6.7 km loop every hour so runners can repeat laps to form 10k, half marathon, marathon or ultra distances. The event runs until the last runner finishes or 24 hours,..

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.

A hybrid fitness event at Cannock Chase Forest on 19 September 2026 offering solo entries and 5 km and 10 km ruck runs with pack weight rules, live chip timing, finisher merchandise and standard category prizes.

Ras Pedol Peris is an AL Welsh fell race in Eryri near Llanberis with full 28 km and half 14 km routes over several mountain summits on 19 September 2026.

The Fan Brycheiniog will take place in Llywel on Saturday 19 September 2026. You can run 16 kilometers.

Experience a multi terrain 10k run through the beautiful South Staffordshire countryside. Finishers receive a bespoke medal and homemade cakes in the heart of Brewood village square.

5 km and 10 km trail races at Cannock Chase Forest with marked routes, live chip timing, finish medals, refreshments and a T-shirt option.

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.

The Porthkerry 5MT is a five mile mixed terrain race in Porthkerry Country Park, offering coastal views and diverse surfaces. The 2026 edition marks the race's 20th anniversary and includes the South Wales Regional Trail Championship.

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.

Three coastal trail races on 26 September 2026 around the Gower Peninsula offer routes of 50, 34 and 23 miles along cliffs, bays and coastal paths. The event is self navigated with checkpoints, GPS tracking and coach transfers to starts.

MacTuffX Swansea at Neath Sports Centre on 26 September 2026 pairs ten functional fitness Xercises with repeated 400m or 800m runs for solo, doubles and relay entries.

A community-hosted BM fell race in Glyn Ceiriog covering 11.6 km with 425 m ascent, entry on the day, minimum age 18, and post-race soup and cakes at the centre.

A five-lap ultramarathon in Berkeley, Gloucestershire across 25-27 September 2026, covering about 130 miles and 15,000 ft of ascent with a 24 hour cut off and 120 places, organized from Hamfields Leisure with camping and tracking included.

Guto Nyth Bran is a fell race on 26 September 2026 at Bedwas Community Hall covering 9.6 km with 396 m of climb. The course is partially marked, includes a short walk from parking, and is for entrants over 18.

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..

Scenic 5K, 10K and Canicross runs through the private grounds of Highnam Court near Gloucester, with on-site facilities, water stations and prizes.

Trail race at Margam Country Park offering 5 km and 10 km routes through woodland with castle views. The event features chip timing, water stations, a finisher's medal and parking included with entry.

A forest trail half marathon in late September with no road crossings, chip and gun timing, water stations and medals for finishers, organised by the local Rotary Club.