Trail Running Calendar Wales 2025-2026

The 24 Hours South - The Offa's Dyke Ultra is an endurance running event taking place in Prestatyn, North Wales, on May 10-11, 2025. Participants will traverse the Offa's Dyke Footpath for 24 hours, aiming to cover the greatest distance by noon on May 11. Runners can choose to walk, run, or alternat..

The Afan Chase Trail Races, scheduled for May 10, 2025, offer an exhilarating trail running experience through the stunning Afan and Glyncorrwg forests. Participants can choose between a half marathon and a 10k race, both featuring diverse terrains including forest paths and single tracks. The route..

The Preseli Beast is a challenging 24-mile off-road and fell running race set in the scenic Preseli Hills of North Pembrokeshire, West Wales. Starting and finishing in the lively village of Maenclochog, the course features approximately 4,600 feet of ascent, including steep climbs, wooded paths, and..

Cadair X is a challenging half marathon event organized by WESWIMRUN, set against the stunning backdrop of Cadair Idris in Wales. The route spans 13.1 miles, featuring a significant elevation gain of 1165 meters, and comprises 65% trail, 25% mountain path, and 10% tarmac. Participants will navigate..

The TEC Brecon Beacons will take place in Brecon on Saturday 10 May 2025. You can run between 10 and 53 kilometers.

The Severn Challenge is a demanding multi-day ultra marathon covering 218 miles along the River Severn from its source in Wales to the mouth in England. Spanning five stages over five days, participants traverse varied terrain, including riverside paths, fields, and overgrown sections, making it one..

The Hafren Ultra is a challenging point-to-point ultramarathon that forms the first day of the MTC Severn Challenge. The race begins with a nearly four-mile mountain trek up Plynlimon, known as Wales' most dangerous mountain due to its boggy terrain. After reaching the source of the Severn River, pa..

The Ultra-Trail Snowdonia by UTMB is a renowned trail running event held in the rugged landscapes of North Wales. As part of the UTMB® World Series, it features challenging courses with distances ranging from 25 km to 168 km, including significant elevation gains up to 9,500 meters. The event attrac..

The Severn Plod Ultra is a 48-mile point-to-point ultramarathon starting from the Mid Wales Art Centre and finishing in Shrewsbury. The route follows the River Severn, passing notable landmarks such as Dolerw Park, the Gorsedd stone circle, and the Montgomery Canal Walk. Runners must maintain a mini..

The OTT Marathon & 10 Mile Race takes place in the scenic Brecon Beacons, starting and finishing at Parkwood Dolygaer, Merthyr Tydfil. The marathon covers approximately 26.2 miles on a mountainous looped course featuring significant climbs, including Pen Y Fan, Fan Y Big, and Tor y Foel, with three..

The Wild Horse 200 is an ultra marathon event held in South Wales, covering 200 miles of challenging trails and mountains. Scheduled from May 21st to 26th, 2025, it takes participants along iconic routes such as Offa’s Dyke, Beacons Way, and the Wales Coast Path, culminating at Worm’s Head. This dem..

The Sausage Dog Run in Wales, organized by Saturn Too, takes place at the scenic Dare Valley Country Park in Aberdare. This unique event features a 7-hour time challenge, allowing participants to choose their running distance, with a minimum of 5km. Runners can complete laps of 4.37 miles (7km) and..

Snowdonia in a Day is a challenging endurance event held in Snowdonia National Park, Wales, covering approximately 60 km (40 miles) with 4,500 meters of elevation gain. The route follows the Snowdonia Skyline, starting in Conwy in the east and finishing in Nebo in the west, crossing 24 mountains acr..

The Midnight Mountain Marathon is a distinctive running event held in the stunning Brecon Beacons, Wales. Scheduled for June 7, 2025, it features both a full marathon and a half marathon, along with a Bergen edition for those seeking an extra challenge. Participants begin their races in daylight and..

The VOGUM 2025 is a thrilling 40-mile trail running challenge along the scenic Wales Coast Path, stretching from Porthcawl to Penarth. Set against the backdrop of the Glamorgan Heritage Coast, participants will experience stunning views of golden beaches, dramatic cliffs, and historical sites like O..

The Pembrokeshire Coastal Races is a trail running festival taking place from June 13 to June 15, 2025, along the stunning Pembrokeshire Coast Path, recognized as one of Britain's most breathtaking coastlines. Participants can choose from four race distances: 100 miles, 50 miles, 32 kilometers, and..

Limitless Trails presents the Black Mountains Ultramarathon event on 14th June 2025, set in the scenic Black Mountains within the Brecon Beacons National Park. The event offers multiple distances: 50 miles (80 km), 32 miles (50 km), marathon (27 miles/43.4 km), and half marathon (13 miles/21 km), wi..

The Black Mountains 50 is a challenging trail running event held at Longtown Village Hall, Herefordshire, serving as the gateway to the Black Mountains. It features four distances: a 50-mile ultra, 32-mile ultra, marathon, and half marathon, all requiring self-navigation with GPX files and maps prov..

The True Grit Trail Half Marathon is an exhilarating running event set to take place on June 14, 2025, at the Bridgend Miniature Railway Centre. Participants will tackle a challenging 13.1-mile route featuring diverse terrain, including steep hills, a scenic quarry section, and technical downhill tr..

The Epona 100 is a challenging ultramarathon event covering 100 miles through scenic trails and mountain passes in Wales. Participants start and finish in Abergavenny, navigating iconic routes such as Offa’s Dyke, Cambrian Way, and Beacons Way. The race features 17,000 feet of elevation gain, with t..