Trail Running Calendar Wales 2026-2027

A self‑navigated *100 km* ultramarathon along the Beacons Way with 3178 m ascent, six staffed checkpoints, strict qualifying criteria and mandatory map-and-compass navigation; places are limited and mandatory kit is enforced.

A 100 miles race across the Brecon Beacons on 25 July 2026, following the Beacons Way from Abergavenny Castle with 10 checkpoints, 6143 m ascent and live GPS tracking. Entrants must meet age, experience and mandatory kit requirements.

Trail races around Abergavenny on 25 to 26 July 2026 offer distances from 12 km to 110 km, camping at Llangorse, checkpoints about every 10 km and UTMB Index categories. The event includes medical support, marked courses and a Race Pack sen..

Join Ooops I Ran It Again at Dare Valley Country Park on 25 July 2026 for a fun themed seven hour time challenge where you can choose distances from 3 km to ultras. Expect medals, goody bags, on course refreshments and scenic park trails.

A trail running event on 26 July 2026 around Pen Y Fan with 5 or 13 mile routes that reach the summit. Entries include a buff, medal and chip timing, and specific compulsory kit is required for each distance.

A 50 mile loop around the Epynt Way on 1 August 2026 starting and finishing at Noyadd Farm Camping in Builth Wells. The mostly trail route has 8,559 ft of elevation, five stocked checkpoints and no time limits.

The Brecon Beacons 51k will take place in Talybont-on-Usk on Saturday 8 August 2026.

Long-established August challenge in northeast Wales offering three route choices of 32 miles, 24 miles and 16 miles. Routes climb the Clwydian Hills along the Offa's Dyke Path with ridge and woodland sections.

SkyRun Eryri in Rhyd-Ddu, Eryri/Snowdonia stages four mountain races from 16 km to 55 km on 15 August 2026, with large elevation gains, aid stations and a mix of ridgelines, scrambling and technical trails.

Trail running at Park Farm Llangattock on 22 August 2026 with 10 km, 10 mile, 20 mile and 32 mile Ultra options across canal, moorland and escarpment terrain. Marked routes, GPX files and multiple aid stations are provided.

A trail event in Afan Forest Park offering two measured routes of about 6.5 miles and 10.5 miles with substantial climb and prize categories. A separate one mile Mini Beast for children includes a finisher medal and sweets.

Point to point trail ultras from Llanthony Priory or Abergavenny to Cardiff along the Cambrian Way, with two long-distance options, staffed aid stations and a minimum age of 18.

A fell race in North Pembrokeshire on Sat 29 Aug 2026 covering 8 km with 330 m of climb. Entries are accepted in advance and on the day, and junior Mochyn du races have entry on the day only.

A fell race in Machen of about 7 km with 365 m of ascent, with registration at Machen Welfare Ground and start and finish on Church Street. Entry is £7 on the day and participants must be over 18.

Coastal ultra marathon events on Anglesey include a 130 mile full circumnavigation and a 47 mile point to point race along the coastal path. Routes are mainly trail based, include checkpoints with cut-offs, and feature significant ascent.

A 30 mile ultra around the Rhymney Valley Ridgeway Walk, mostly on trail with about 4,252 feet of ascent, starting and finishing at Parc Penalta, with three fully stocked checkpoints and no official time limit.

A 102 mile, 5,172 m elevation ultramarathon across Snowdonia on 5 September 2026 with 11 checkpoints and a 42 hour cut off. The course is self navigated and runners are tracked online via GB Race Tracker.

A 45 mile mountain ultramarathon in Snowdonia Eryri from Betws-y-Coed, with about 2800 m ascent, five supported checkpoints and mandatory mountain kit. Entry requires previous ultra and mountain experience and a minimum age of 20.

RunThrough Snowdonia Sea2Sky in Barmouth invites trail runners to tackle coastal paths and climb Cadair Idris with 12 km, 25 km and 54 km options. Expect stunning views, waymarked trails, chip timing and a lively event village.

A six day self supported multistage race down the spine of Wales from Conwy Castle to Cardiff Castle, covering 380 km and 17,400 m of ascent. Two day northern and southern options offer condensed sections of the same route.