Trail Running calendar near Harlech 2026-2027

A countryside challenge from Wistanstow offering 12, 18 and 26 mile routes through Clun and Bishop's Castle with checkpoints, maps and a finish meal.

A 100 mile ultramarathon along the Cambrian Way from Rhayader, Wales, on 12 September 2026, with live GPS tracking, on-route support and a finisher medal.

Defeat Delamere is a forest run on 13 September 2026 at Delamere Forest, Frodsham, offering 5k, 10k, 16k and a junior race. Entries include race packs, finisher medals, t-shirts and post race hydration.

Women only 10 km event at Beacon Country Park with chip timing, marshals, medical cover and on course ambassadors, limited to 250 places.

A midweek multi-terrain race in Wallasey, part of the Wirral Multi-Terrain League, with senior races of 6.5 to 8 km and junior races of about 2 miles.

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.

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 new 50K ultra in the Shropshire Series following the Church Stretton route in reverse, starting at Rectory Fields and finishing at The Quarry Park Shrewsbury. Includes chip timing, five nutrition stations and linking medals.

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.

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 286 km mountain race across Wales with solo and team entries, five indoor checkpoints and a 108 hours time limit.

Arrowe Park is the final race in a four‑event Wirral Multi‑Terrain League held across varied surfaces in September.

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 fully waymarked, supported sea to summit ultramarathon from Caernarfon Castle to Bron y Feds Uchaf covering 29 miles and 5600 ft of ascent.

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.

A fell race near Criggion covering 11.5 km with 790 m of ascent on a partially marked course that requires navigational skills. Entry is £8 and teams may enter free of charge.

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.

A multi-terrain 10K through country lanes and woodlands on 27 September 2026, organised by Wye Valley Runners to raise funds for the Herefordshire Special Care Baby Unit. The race finishes at Credenhill Social and Sports Club with on-site c..

Guided trail run of about 10 km from Llangollen that visits Castell Dinas Bran and the Abbey, returning along the canal at a steady pace with regular regrouping stops.