Trail Running Calendar Wales 2025-2026

Event overview The Gower Ultra 50, Ultra Bach and Trail Race are three linear long-distance trail races on Saturday 4 October 2025. The races follow the Wales Coast Path in the Gower Area of Outstanding Natural Beauty and pass beaches, bays..

Tackle a scenic 50 km trail through the Cambrian Mountains and along Lake Vrynwy at The Loop Ultra. Limited to 100 runners, the weekend offers camping, live music, wild swimming and a festival vibe with full course support.

Event details Breidden Hills is an off-road fell race organised by Mercia Fell Runners Club and held at Criggion Village Hall, Criggion, SY5 9AY. The race distance is 11.5 km with total ascent of 790 m. Entry is by pre-registration only; th..

Run the iconic Twin Peaks of Pen Dinas and Constitution Hill from Aberystwyth bandstand, a scenic mixed terrain race that blends road sections with off road path climbs. Junior and senior routes make it a family friendly challenge.

The Scare Bear Run in Aberdare, hosted by Saturn Running, is a unique 7-hour time challenge event set in the scenic Dare Valley Country Park. Participants can choose their distance, starting from a minimum of 3km, with laps of approximately..

Loggerheads Autumn Trails is an exciting running event featuring longer versions of popular 5k and 10k races, set in the scenic Loggerheads Country Park. Participants can choose from a 14k race, which consists of two loops of a 7k course, o..

The Brenig Way 50K Trail Race is a challenging ultramarathon that covers 50 kilometers through remote upland scenery in Wales. Starting in Corwen, participants follow a marked footpath along country lanes, forest tracks, and riverside paths..

Event overview The Giddy Horse Half Marathon, Trail, & Steeplechase Obstacle Course Races take place on Saturday 25th October 2025 at Chepstow Racecourse, Saint Lawrence Road, Chepstow, UK, NP16 6BE. Tickets for the event are currently..

The Giddy Horse Backyard 2025 is a running event held at Chepstow Racecourse, UK, featuring races around Piercefield Park. The course is a 4.167-mile loop combining woodland, parkland, and tarmac trails, mostly flat with gentle elevation ch..

Tackle Wales wildness at the Black Beacon Mountain Races from 31 Oct to 2 Nov 2025, with distances from 21 miles to a 100 mile mountain odyssey across the Brecon Beacons. Expect big climbs, remote ridgelines, checkpoints and a finisher meda..

Event details The OTT Ultra Marathon is a 30 miles trail race in the Brecon Beacons, scheduled for Saturday 1 November 2025. The event is based in Merthyr Tydfil. Entry is limited to 200 runners and the race will be chip timed. The minimum..

Twmbarlwm Terror is a 7-mile multi-terrain race organised by Fairwater Runners Cwmbran in Risca, near Newport, South Wales. The route combines footpaths, open fields, country lanes and woodland from Risca Leisure Centre to the Twmbarlwm pea..

Run the stunning Gower coastline at Oxwich Bay on 8 Nov 2025 with routes across cliff tops, dunes, woodland and beaches. Options from 10K to Ultra suit every level while full marking and electronic timing keep the focus on the views and the..

Dusk To Dawn - Bridgend Miniature Railway Dusk To Dawn is a 12-hour ultra challenge held on 8 November 2025 at Bridgend Miniature Railway, Fountain Road, Aberkenfig, Tondu, Bridgend, CF32 9BZ, Mid Glamorgan, GB. Entry is open to people aged..

Event The Beacons Ultra, Marathon and Half is a trail running event on Saturday 8 November 2025 in Talybont-on-Usk, Powys, in the foothills of the Brecon Beacons. All races start and finish in Talybont-on-Usk and use mixed terrain including..

Event The Anglesey Trail Half Marathon & 10K 2025 is a trail running event on 9 November 2025 at Newborough Warren and Ynys Llanddwyn, Llanfairpwllgwyngyll, Anglesey, UK. The event is organised by Always Aim High Events, based in Llanbe..

Event overview Trails & Tarmac 12hr Backyard Ultra takes place on 15 November 2025 in Crickhowell, Powys, set in the Black Mountains. The event is organised by Limitless Trails. Entries open 22 January 2025 and close 8 November 2025. Th..

The Margam Trail Races take place in the scenic Margam Country Park and Forest, offering trail running events of 5km, 10km, and half marathon (21.1km) distances. The courses feature undulating forest paths and woodland trails with significa..

Slate Trail Ultra : Event overview Slate Trail Ultra is an ultramarathon event organised by APEX Running on the Snowdonia Slate Trail. The 2025 event is scheduled for 15-16 November and is based at Porth Penrhyn, Bangor. Entry information f..

The MT10 (Multi-Terrain 10) is a 10-mile (16 km) off-road trail run held at Pembrey Country Park and along Cefn Sidan Beach in Carmarthenshire. The course features a mix of soil and firm sand surfaces, providing a varied terrain that accomm..