Trail Running calendar near Haverfordwest 2026-2027

We have found 111 Trailruns within 80 miles of Haverfordwest. See below where and when you can find the races.

Day one of a two day mountain marathon at Westermill Farm, Exford, featuring a 40 km course with 1800 m of climb. Teams of two must pre-enter and the entry fee covers both race days and campsite.

A 32 km mountain event on Pen y Fan with 1800 m of ascent and three summit climbs via six different routes. Two categories are offered: unweighted and a 16 kg weighted class; navigation is unmarked and a GPX will be provided.

November 2026

A weekend of self navigated ultraruns along the South West Coast Path offering five distances from 38 km to 110 miles with GPS tracking. Routes pass coastal features and Exmoor terrain and carry ITRA and UTMB index points.

Coastal trail running at Oxwich Bay on 7 November 2026 with 10K, half, marathon and ultra routes across cliffs, woodland, dunes and beaches; part of the Endurancelife 2026-27 season with leaderboard points.

Three trail distances take place around Talybont On Usk on 7 November 2026: a 49 mile ultra, a 26 mile marathon and a 13 mile half marathon, all on mixed trail, mountain, canal and road terrain.

Experience a 30 mile ultra marathon through the heart of the Brecon Beacons featuring the summit of Pen y Fan. This trail event offers technical terrain and scenic reservoir views with a strict 200 runner limit.

A set of ultra events along the North and Exmoor coasts on 7 and 8 November 2026. Routes follow the South West Coast Path with self navigation, GPS tracking and transport options to some starts.

Trail Half Marathon Wales runs in Margam Country Park and Forest on 14 November 2026, offering a fully marked half marathon and 10k on forest trails with checkpoints, safety cover, and included car parking.

An 8.8 km fell race with 714 m of ascent around Llyn y Fan across remote moorland, requiring navigation and mountain skills. Limited to 50 runners, with entry refunds for car share and cyclists.

A seven hour Time Challenge at Dare Valley Country Park where participants choose their distance. Medals for 3 km finishers, distance pins for longer efforts, goody bags with vegan options, aid tables and free parking.

The final race of the 2026 RTT Series takes place in Afan Forest with separate 5 km and 10 km routes from Bryn Bettws Lodge. The event features chip timing, finisher medals, marked and marshalled routes and water stations.

Ras Y Mast is a club-organised running event at Blaenwern Holiday Centre in Llanybydder, Ceredigion. The senior course is 6.5 miles on mixed surfaces, with separate junior races and historical results available back to 1998.

December 2026

Winter trail races through Afan Forest and the Rhigos range finishing at Dare Valley Country Park. Options include a 34 mile ultra, a marathon and a linear half with marked routes, checkpoints and a compulsory kit list.

A trail half marathon on 19 December 2026 at Bridgend Miniature Railway Centre combining an 8 mile section of The Hateful Eight with about five extra miles of muddy, technical terrain. Limited to 70 places with a costume prize and a bespoke..

A Christmas themed timed lap event at Dare Valley Country Park with well maintained footpaths. Finishers receive a bobble hat, a themed medal and a goody bag with a vegan option.

A two hour night navigation event near Rosebush featuring a *16 km* woodland route with 660 m climb, a pre-marked map, compulsory kit and required navigation experience. Entry is online with a £10 fee.

February 2027

A 12-hour Backyard Ultra near Crickhowell on a 4.167 mile loop split between trail and tarmac. First eleven loops are hourly, the twelfth is a race, with loop medals, a 32-mile ultra medal, and a trophy for the winner.

The Brecon to Cardiff Xtreme will take place in Nantgarw on Sunday 14 February 2027. You can run between 26 and 48 miles.

A 7 hour Time Challenge at Dare Valley Country Park on 28 February 2027 offering flexible distances from 3 km up to ultra and 50 km, with medals, distance pins, goody bags and on-course aid at each lap.

March 2027

Trail ultramarathon in the Black Mountains based in Crickhowell offering 10, 20 and 40 mile routes with marked courses and GPX files. Canicross friendly; mandatory kit and entry via SiEntries with set fees and age limits.

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