Trail Running calendar near Haverfordwest 2025-2026

We have found 70 Trailruns within 80 miles of Haverfordwest. See below where and when you can find the races.

Rabbit Run Wales is a trail running event set on the private grounds of the Merthyr Mawr Estate along the South Wales coast. It features stunning 12K (7.5 miles) and new 40K (approximately 25 miles) races, plus junior races of 2K, 4K, and a toddler dash. The courses traverse beautiful trails, hills,..

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 scenic course featuring well-maintained footpaths with beautiful countr..

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

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Dusk Till Dawn is a challenging 12-hour running event held at Bridgend Miniature Railway in South Wales. Participants tackle three distinct 10-mile mixed terrain routes, including hills, technical downhill forestry trails, and minimal road sections, running as many loops as possible from dusk until..

Ultra X Wales is a multi-stage ultra-marathon held in southern Snowdonia, western Wales, featuring stunning landscapes from the northern Cambrian mountains to lakes, coastline, mountains, and beaches. The event offers four race options: a 110km two-day race, and single-day races of 60km, 50km, and 2..

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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, showcasing spectacular mountain scenery including Pen-y-Fan and the Carmarthen Fans. Starting..

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 scenic and challenging 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 Minehead sec..

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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 Brecon Beacons 51k event, part of the RunThrough UK Brecon Beacons Trails in August 2025, offers runners a challenging ultra-distance trail race in the scenic Brecon Beacons, starting from Talybont-on-Usk. Participants can choose from 10K, 24K, or 51K distances, each featuring rugged trails, cli..

Race The Train™ is an annual running event held in Tywyn, Mid-Wales, organized by the Rotary Club of Tywyn. The event features multiple race distances catering to various age groups and abilities, including the 14-mile Rotary Challenge, 10K Quarry Challenge, 5.5-mile Dolgoch Challenge, 3.5-mile Tynl..

The Beast of Llangattock is a challenging trail running event held at Park Farm, Llangattock, near Crickhowell in Powys, Wales. It offers four distances: 10km, 10 miles, 20 miles, and a 32-mile ultra, each featuring spectacular routes with panoramic views of the Black Mountains, Sugar Loaf, and the..

The Wild Wolf of Radnor is a 10-mile trail race set in the stunning Radnor Forest in Mid Wales, an area steeped in local legend as the site where the last wolf of Wales was shot. The course features diverse terrains including forestry roads, open moorland, and muddy, tree-lined single tracks. Runner..

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 race offers two distances: a 6.5-mile (10.5 km) route with 288 meters of climb, and a longer 10.5-m..

The Crickhowell 10km is a new running event set in the scenic Brecon Beacons National Park, starting and finishing at Llangattock near Crickhowell. The race features a flat, out-and-back course along the Brecon & Monmouthshire canal, with a turnaround point at Gilwern village. Designed for runners l..

Saturn Running's "Will Run For Ice Cream" event takes place in the scenic Dare Valley Country Park, Aberdare, Wales. This inclusive 7-hour time challenge allows participants to run or walk as many laps as they wish on a well-maintained 4.37-mile (7km) loop, with shorter options for younger runners...

September 2025

The RIDUM 2025 is a challenging 30-mile ultra marathon set along the Rhymney Valley Ridgeway Walk in South East Wales. Participants will traverse varied terrain, including lanes, trails, and woodland, with a total elevation of 4,252 feet. The route features notable points such as Mynydd Machen, the..

The RunThrough Snowdonia Sea2Sky Trail Races, held in September 2025 at Barmouth, UK, offer two challenging distances: 25k and 53k. Set in the stunning landscape of Snowdonia, participants can enjoy breathtaking trail views while tackling a well-marshalled course. The event features chip-timed resul..

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The Dare Valley Hateful 8 (Bwlfa Rise) is an endurance running event held at Dare Valley Country Park in Aberdare, South Wales. Participants tackle a challenging 4.8-mile loop featuring technical climbs, mountain views, and fast descents. The event lasts 8 hours, during which runners aim to complete..