Trail Running calendar near Cardiff 2025-2026

The MTC Thames Challenge is a demanding four-day ultra marathon covering 184 miles along England’s longest river path, the Thames. Starting from the river’s source in the Cotswolds, the race progresses through four stages: the Cotswold Ultra (57 miles), Oxford Ultra (49 miles), Windsor Ultra (47 mil..

The Brecon Beacons 51k is an ultra-distance trail running event held in the scenic village of Talybont-on-Usk, UK. Scheduled for August 9, 2025, it offers three race distances: 10K, 24K, and the challenging 51K ultra. The courses feature rugged trails, climbs, descents, and picturesque views of the..

The Buckfast Abbey Dash is an exciting running event set to take place on August 10, 2025, in the picturesque grounds of Buckfast Abbey, following the Abbey's Summer Fair. Participants can choose from various distances, including a 2.5 km family fun run, 5 km, 10 km, and a half marathon (13.1 miles)..

The Ramsbury Gold 10k is a scenic trail running event held at the Ramsbury Brewery on the Ramsbury Estate in Wiltshire. The 10km course features approximately 70% off-road terrain, including local trails, woodland, and footpaths, with an elevation gain of 165 meters. Suitable for all abilities, the..

The Dartmoor Summer Series Maprun Golden Dagger is the third event in a five-race league held on Dartmoor's open moorland, known for its technical and challenging terrain. Designed for experienced orienteers, the courses navigate a mixed runability area featuring numerous pits, rocks, gullies, and o..

The Bearwood Blast is a chip-timed trail running event held at Bearwood Farm in Pembridge, Herefordshire. Featuring 5k and 10k distances, the race offers a scenic, undulating course through the Herefordshire countryside. Runners traverse a mix of grassy verges, farm tracks, and woodland paths, with..

The Crook Peak Cake Race will take place in Cross on Wednesday 13 August 2025.

The Ragleth Inn race, organized by Mercia Fell Runners, is a fell running event set in Little Stretton, West Midlands. The race features a new route for 2024, covering a distance of 4.4 km with a total ascent of 390 meters. Participants can register on the day or pre-register, with entry fees varyin..

One Fyne Night is a popular running event set in the scenic Fyne Court Estate within the Quantock Hills AONB. Featuring 5km and 10km route options, participants can enjoy a beautiful course that winds through parkland and woods, culminating in a finish at the main courtyard. The event emphasizes sus..

The Beast of Llangattock is a challenging trail running event held in Llangattock, Wales, offering four distances: 10km, 10 miles, 20 miles, and a 32-mile ultra. Starting and finishing at Park Farm, the course features stunning panoramic views of the Black Mountains, Sugar Loaf, and the Brecon Beaco..

The Sunflower Stride is an exciting evening running event held in Dorchester, Dorset, featuring 5k and 10k races through stunning sunflower fields and scenic landscapes. Designed for runners of all abilities, the 5k is open to participants aged 13 and above, while the 10k welcomes those aged 16 and..

The Beast of Bryn is a challenging trail running event held in the scenic Afan Forest Park near Port Talbot, South Wales. Established in 2011 and managed by the Bryn Residents Action Group (BRAG), the 2025 race offers two distances: a 6.5-mile (10.5 km) route with 288 meters of climb, and a longer 1..

The Two Tunnels Races, scheduled for August 17, 2025, in Bath, UK, offer a unique running experience featuring the longest underground sections for each race distance in the UK. Participants can choose from various events, including an ultra marathon, marathon, half marathons, 10km, 5km, and family-..

The Dartmoor Summer Series Maprun 2025 at South Hessary is the fourth of five technical orienteering events held on Dartmoor's open moorland. Designed for experienced orienteers, the courses navigate a challenging terrain featuring pits, rocks, gullies, and outcrops, requiring advanced navigation sk..

The Great Links Tor – Flyer – Dartmoor Fell Series will take place in Okehampton on Wednesday 20 August 2025.

The Black Cattle Ultra Gwartheg Duon is a challenging trail running event held in South Wales, starting at Cardiff Harlequins RFC in Whitchurch, Cardiff. Participants can choose between two ultra distances: 44 miles from Llanthony Priory or 33 miles from Abergavenny. Both routes follow the scenic Ca..

The Summer Green Man Ultra (GMU) is a challenging ultra marathon held near Bristol, UK, featuring two race distances: a 45-mile full loop and a 30-mile partial loop of the Community Forest Path. Both races run clockwise on the same day with shared checkpoints and finish at Ashton Park School. The 45..

The Crickhowell 10km is a scenic race held in August 2025, suitable for runners looking to progress from a 5k. The flat course follows the Brecon & Monmouthshire canal, starting and ending in Llangattock near Crickhowell, with a turnaround at Gilwern. All finishers receive a medal, and there is a wa..

The Pershore Plum 10k is an annual chip-timed running event held in Pershore, Worcestershire, organized by the Pershore Plum Plodders running club. The flat, multi-terrain 10k course starts at Pershore Leisure Centre, follows Pershore High Street, crosses the river into surrounding countryside and f..

The Dartmoor Summer Series Maprun 2025 Whitchurch is the final event in a league of five summer orienteering challenges held on Dartmoor's open moorland. Designed for experienced orienteers, the event features three technical courses—Orange (34 km), Blue (5.7 km), and Green (4.1 km)—each navigating..