Trail Running calendar near Swansea 2025-2026

We have found 169 Trailruns within 80 miles of Swansea. See below where and when you can find the races.

The Medal Mix Challenge - Day 1 is a 7-hour timed running and walking event taking place near Capel Lane, Littleham, Exmouth on November 29, 2025. Participants of all abilities are welcome to complete as many 5.3 km laps as possible on a scenic, undulating, and accurately measured tarmac course alon..

The Medal Mix Challenge Day 2 is a 7-hour timed running and walking event taking place near Capel Lane, Littleham, Exmouth on November 30, 2025. Participants complete laps of a scenic 5.3 km out-and-back course along an old disused train line, fully paved and accurately measured as a road race. The..

December 2025

The Secret Santa Series is a festive trail running event held in the Brecon Beacons National Park, starting and finishing at Cwmdu Village Hall, Powys. It offers three challenging distances: 14 km (Figgy Pud), 10 miles (Turkey Ten Mile), and a half marathon (Du Mulled Wine), with significant elevati..

The Secret Santa Tinsel Half Marathon, part of the Secret Santa Figgy Pud 14km, Turkey Ten Mile & Half Marathon Du Mulled Wine event, takes place in the scenic Black Mountains near Crickhowell, Powys, starting from Cwmdu Village Hall. Set within the Brecon Beacons National Park, the half marathon fo..

The Celtic Trail Races, held annually at Dare Valley Country Park in Aberdare, South Wales, offer a festive trail running experience with three distances: a 34-mile ultra, a 26-mile marathon, and a 13-mile half marathon. The courses traverse rugged, ancient Celtic tracks through Afan Forest and the..

The Mortimer Forest Trail Race will take place in Ludlow on Sunday 14 December 2025.

The Nightmare Before Xmas Trail ½ Marathon is a challenging trail running event held at the Bridgend Miniature Railway Centre in Bridgend, UK. Participants face a tough course starting with the "Hateful Eight," an 8-mile route featuring mixed terrain including a steep hill, scenic road sections, and..

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 Midwinter Mortimer Trail is a challenging trail running event held in Herefordshire, England, featuring two main distances: a 30-mile ultra and a 15-mile Croft 15 route. The ultra course runs from Ludlow Castle to Kington, traversing the scenic Marches landscape with forests, limestone tops, hil..

January 2026

The Bell Challenge Day 5, organized by Running Events Devon, takes place on January 2, 2026, in Exmouth at Capel Lane. This 7-hour timed event features a mainly flat, accurately measured 5.3 km out-and-back course on a scenic, disused train line surfaced entirely with tarmac, classifying it as a roa..

The Walter Raleigh Round Half Marathon is a scenic 13.6-mile race starting and finishing in Budleigh Salterton, England, the birthplace of Sir Walter Raleigh. The course traverses quiet back lanes, unsurfaced county roads, hidden footpaths, the Otter Valley, High Peak, the Jurassic Coast, and a dism..

Haldon Night is a winter night trail running event held at Haldon Forest Park near Exeter, Devon. It features single-loop courses of 10K and 5K distances, with the 5K open to children aged 8 and above if accompanied by an adult. The event also offers kids' races: a 1K for ages 3-7 and a 2K for ages..

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...

The Pagan Midwinter Marathon is a challenging trail running event held in Chagford, Devon, located in the north-eastern corner of Dartmoor. Set in midwinter, the event features two distances: a marathon of over 28 miles with more than 1500 meters of ascent, and a half marathon exceeding 14 miles wit..

Pagan Trails is a challenging running event set in the picturesque Dartmoor region, specifically in Chagford. Participants can choose between two distances: a Marathon of over 28 miles and a Half Marathon exceeding 14 miles, both featuring significant elevation gains. The routes take runners past an..

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..

February 2026

The Westonbirt Arboretum Winter Night Race is an exciting running event set in the stunning National Arboretum, featuring over 2,500 tree species. Participants can choose between 5km and 10km routes, which showcase the arboretum's diverse landscapes and solid terrain, providing a unique blend of tra..

The Exeter Half Marathon, organized by Exeter City Community Trust, is a popular running event held in Exeter, UK. The race features a two-lap, 13.1-mile (half marathon) course starting from Piazza Terracina, Haven Road, and follows a scenic route along Exeter’s historic Quayside and Riverside Valle..

The Westonbirt Arboretum Winter Day Race is a scenic running event set in the stunning National Arboretum, featuring over 2,500 tree species. Participants can choose between a 5km or 10km race, with routes that showcase the beauty and diversity of the arboretum's landscape. The event is designed to..

The Trails & Tarmac Backyard Ultra, organized by Limitless Trails, is an endurance running event held near Crickhowell in the Black Mountains, Powys, UK. The race features a 4.2-mile (approximately 4.17 miles in some editions) loop combining equal parts trail and tarmac, with mostly flat terrain, on..