Trail Running calendar near Cardiff 2025-2026

We have found 248 Trailruns within 80 miles of Cardiff. See below where and when you can find the races.

The Pewsey Vale Ultra is an exciting new running event featuring a challenging 125km loop through the picturesque Wiltshire countryside, following the Pewsey Vale Circular walk route. Participants will experience a total ascent of 1902m, with the course well-marked and supported by checkpoints every..

Rabbit Run Wales is a trail running event set on the private grounds of the Merthyr Mawr Estate along the South Wales coast, within the Merthyr Mawr Warren National Nature Reserve. It offers stunning 12K (7.5 miles) and new 40K (approximately 25 miles) races, featuring diverse terrain including hill..

The My Little Care Bear Run, organized by Saturn Running, takes place at Dare Valley Country Park in Aberdare, Wales. This nostalgic 1980s-themed event offers a 7-hour time challenge where participants can run multiple laps of a 4.37-mile (7km) course on well-maintained footpaths with scenic country..

The Gower Peninsula Ultra Challenge, held in South Wales on July 19-20, 2025, offers a range of endurance events including 100km, 75km, 50km, marathon, 25km, and a 10km family-friendly loop. Set in the UK's first Area of Outstanding Natural Beauty, the course features stunning landscapes of golden b..

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The Dragon Coastal Ultramarathon is a series of three ultra-trail races held along the scenic Wales Coast Path, finishing at Cardiff Bay. Scheduled for July 19-20, 2025, the event offers distances of 100 miles (Rhossili Bay to Cardiff Bay), 50 miles (Kenfig Nature Reserve to Cardiff Bay), and approx..

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Dusk Till Dawn is a challenging 12-hour running event held at Bridgend Miniature Railway in South Wales. Participants run three different 10-mile mixed terrain routes, including hills, forestry trails, and technical sections, aiming to complete as many loops as possible from dusk until dawn. The cou..

The Hillfort Hustle is a scenic trail running event held in Aymestrey, Herefordshire, featuring 10-mile and 5-mile race options. Both courses include a challenging climb to the Iron Age Hillfort at Croft Ambrey, offering stunning views of the North Herefordshire countryside. The route passes through..

The Wye Valley Tunnel Run is a scenic running event held at Wyedean School in Sedbury, UK, featuring 10km, half marathon, and marathon distances. The courses primarily follow the flat, shaded Wye Valley Greenway, an old railway line, including a unique 1.1km stretch through the refurbished and lit T..

The Beacons Way Ultra 100 Miles is a challenging ultramarathon held in the Brecon Beacons National Park, South Wales. Covering 100 miles with 6,143 meters of elevation, the race starts at Abergavenny Castle and follows the Beacons Way National Trail, including iconic peaks like Pen-y-Fan and the Car..

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The Beacons Way Ultra 100km is a challenging ultramarathon held in the Brecon Beacons National Park, Wales. Covering 62 miles with 3,451 meters of elevation, the race follows the official Beacons Way trail, starting near Talybont and traversing spectacular mountain scenery including Pen-y-Fan and th..

The White Horse Gallop is a circular half marathon trail running event that begins and ends on the Ridgeway, showcasing the scenic beauty of National Trust sites, including Ashdown House and the historic White Horse Hill. The course features an "undulating" route, providing a challenging yet enjoyab..

The Pen Y Fan Challenge is a trail running event held in South Wales, featuring two race distances: 5 miles and 13 miles. Both courses include the ascent of Pen Y Fan, the highest peak in South Wales, offering a challenging and scenic experience. The event takes place near the LD3 8NL area and is or..

August 2025

The Exmoor Trail Running Weekend, held in Lynmouth, offers a scenic running experience across coastal landscapes and river valleys. Participants can join three guided runs: a 5-6 mile evening run exploring the Valley of the Rocks, a 15-16 mile Saturday morning run covering Contisbury Hill, the North..

The South West Coast 50 Ultra Challenge is a premier 50km trail event held in Somerset and Exmoor, starting and finishing at Dunster basecamp near Dunster Castle. Participants can walk, jog, or run the challenging 50km loop featuring over 1600 meters of climb, including the scenic first section of t..

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The EDDUM is a 50-mile ultra running challenge set around the Epynt Way, a largely untouched permissive trail encircling the Sennybridge Training Area, the UK's third largest military training ground. Located in Wales, the course offers stunning views of the Brecon Beacons to the south and the Cambr..

The Haytor Dartmoor Summer Series Maprun is an orienteering event held on the open moor of Dartmoor, featuring a generally runnable terrain with pits, rocks, and outcrops. It is the second of five events in the summer league and is designed for experienced orienteers, as the courses are not suitable..

The Totnes 10K is a scenic running event held at Totnes Leisure Centre and Borough Park in the UK. The race course is nearly all off-road, following the beautiful River Dart, offering runners a picturesque and natural setting. The event starts and finishes on Borough Park, with the leisure centre se..

The Haselbury Trailrace is a scenic cross-country running event held at North Perrott Cricket Club in Somerset. Established in 1989, the race features a challenging 10K course consisting of two laps, with a shorter 6K fun run option available. The event offers a friendly atmosphere with excellent fa..

The The Hilly Helmet Challenge will take place in Westbury on Wednesday 6 August 2025.

The MTC Cotswold Ultra is a challenging 57-mile point-to-point ultra marathon starting at Kemble Station and finishing at Travelodge Oxford Abingdon Road. The scenic route follows the Thames Path, passing through picturesque villages like Somerford Keynes, Cricklade, Castle Eaton, and Lechlade, feat..