Trail Running Calendar Wales 2025-2026

Secret Santa Figgy Pud 14km, Turkey Ten Miles & Half Marathon Du Mulled Wine is a trail event from Cwmdu Village Hall near Crickhowell, Powys. Distances are 14km, 10 miles and a Half Marathon. The courses head west toward Bwlch Mountain and follow the Beacons Way, with the Half Marathon routing via..

The Alyn Waters Winter Trails offer 5k and 10k fully marked and marshalled trail running courses set in the scenic Alyn Waters country park. Designed for all abilities, the event encourages participants to race or enjoy a leisurely run without time limits. The accessible paths feature varied terrain..

The Sea 2 Summit - Offa's Dyke event offers Half Marathon, Full Marathon, and Ultra Marathon distances along the scenic Offa's Dyke footpath, starting at Prestatyn seafront. The Ultra race covers 33 miles, finishing at the summit of Cyrn y Brain above the Horseshoe Pass. The course follows the well-..

Set in South Wales, Celtic Trail Races offers three trail challenges: the Ultra (34 miles), Marathon (26 miles), and Half Marathon (13 miles). The routes wind through Afan Forest and the Rhigos range, finishing along the Coed Morgannwg Way with dramatic views of the Brecon Beacons, Black Mountain, S..

The Moel Famau Festive 'Piece of String' Race is a unique running event held on the last Saturday before Christmas at Bwlch Penbarras. Participants can expect a surprise distance and route, ranging between 6 and 12 kilometers, which will be revealed as the race progresses. The event includes a Canic..

A Nightmare Before Xmas Trail ½ Marathon, staged by Mad Running Junkies, takes place at the Bridgend Miniature Railway Centre in Aberkenfig, Tondu, near Bridgend (CF32 9BZ). The course blends the Hateful Eight 8‑mile route with a further 5+ miles of challenging trail, totaling around 13 miles of mix..

The Christmas Carol Bobble Hat Run, organized by Saturn Running, takes place in the scenic Dare Valley Country Park in Aberdare, Wales. This inclusive event welcomes runners and walkers of all abilities. Participants can choose their distance within a 7-hour time challenge, with a minimum of 3km and..

The Cardiff Trail 10k is an exciting running event set against the stunning backdrop of Castell Coch. Scheduled for January 18, 2026, this newly introduced race offers participants a unique blend of competition and natural beauty, making it an ideal choice for both experienced runners and newcomers...

Saturn Running's "Spice Up Your Run - Wales" is a fun and inclusive running event held at Dare Valley Country Park in Aberdare. Participants can walk or run a minimum of 3km, with options to complete laps of approximately 7km each, allowing distances up to 50km, including half-marathon, marathon, an..

Trails & Tarmac Backyard Ultra – Winter, organized by Limitless Trails, takes place near Crickhowell in the Black Mountains, Powys (GB). A 4.167-mile loop blends trail and tarmac, with one gradual climb and a short steep section; the rest is relatively flat for speed. Backyard Ultra rules apply: eac..

The Brecon to Cardiff Classic is a 70-kilometer ultra running race following the scenic Taff Trail from Brecon in the Brecon Beacons National Park to Cardiff. Now in its 12th year, this fully marked, one-way race features diverse landscapes, including dramatic mountains, waterfalls, reservoirs, and..

Brecon to Cardiff Xtreme is a winter mountain ultramarathon, a 75-km linear challenge from Brecon to Cardiff (about 47 miles) with roughly 2,700–2,800 m of ascent, including 11 summits such as Pen y Fan, Cribyn and Fan y Big. The Taff Xtreme Marathon is the second half, a 26.2-mile leg from Merthyr..

The St David's Day Dragon Run 2026, organized by Saturn Running, takes place in the scenic Dare Valley Country Park in Aberdare, Wales. This 7-hour time challenge allows participants to run distances of their choice, starting from a minimum of 3km. The course features well-maintained footpaths with..

The Loggerheads Trail 5k & 10k is a popular trail running event set to take place in March 2026 at Loggerheads Country Park. Participants can choose from three race options: a 5k Trail, a 5k Canicross Trail, and a challenging new 10km route. The courses feature a variety of terrains, including river..

The Hateful 8 Ultra Loop is a multi-loop endurance running event held at Bridgend Miniature Railway in Aberkenfig, Bridgend, South Wales. Each loop covers about 9 miles, and participants aim to complete as many loops as possible within an 8-hour window. The course is a mixed-terrain route featuring..

Brynkinalt Running Festival takes place on the Brynkinalt Estate near Chirk, Wrexham. The event offers 5k and 10k races across two formats: canicross on Saturday and traditional trail running on Sunday, welcoming participants of all ages and abilities. The routes cross the estate’s private land, not..

Beast of the Blacks is a three-distance trail challenge set in the Black Mountains of Wales. Starting near Llanbedr Hall, Crickhowell, the event offers 10, 20, and 40 mile routes with elevations of roughly 3,418 ft, 4,553 ft, and 9,106 ft respectively. The course is fully marked and supported by mar..

Set in the Cambrian Mountains, Nant Yr Arian Silver Trail offers Half Marathon and 10k routes, with junior distances for younger runners (0.5 mile for under 7; 1.5 miles for 7–11; 2.6 miles for 12–16). The event is run by Aberystwyth Athletic Club as a not-for-profit, family-friendly affair with ful..

Saturn Too presents The Dashing Dog Charity Run - Wales at Dare Valley Country Park in Aberdare. This inclusive seven-hour time-challenge allows runners to complete as many laps as they wish, with a minimum 3 km per lap and a full lap around 7 km on paths, subject to safety changes. The scenic cours..

The Red Warrior Annual Multi Terrain Races take place at Margam Country Park in the UK, offering challenging 5K, 10K, and 20K distances. The event features separate races for solo runners and canicross participants, allowing runners to compete alongside their dogs. Known for its rugged and varied te..