Trail Running calendar near Haverfordwest 2026-2027

We have found 118 Trailruns within 80 miles of Haverfordwest. See below where and when you can find the races.

Multi distance coastal ultras along the South West Coast Path in November 2026, run as self navigation with GPS tracking. Routes cross Exmoor National Park and include significant elevation and varied coastal terrain.

A trail running event at Margam Country Park on 14 November 2026 offering a 21.1 km half marathon and a 10.2 km race on fully marked forest trails, with checkpoints, parking included and mandatory basic safety kit.

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.

Saturn Running holds The Smurf Run at Dare Valley Country Park in Aberdare offering a 7 hour time challenge with distances from 3 km up to 50 km. The event features themed medals and pins, finisher goody bags and aid tables with vegan optio..

The final race of the 2026 RTT Series at Bryn Bettws Lodge features separate 5 km and 10 km forest trail routes with chip timing, water stations and a finisher's medal, and will decide the overall RTT standings.

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

Three fully marked trail races through Afan Forest and the Rhigos range finishing at Dare Valley Country Park. Routes include steep climbs, river crossings and long descents with timed tracking, checkpoints and finishers medals.

Trail half marathon near Bridgend on 19 December 2026 with an 8 mile section plus about 5 extra miles of mixed terrain. Entry is limited to 70 runners and minimum age is 17.

A festive family-friendly fun run at Dare Valley Country Park with 2.5 km and 5.0 km routes. Finishers receive a themed medal and goody bag; the event includes an aid table, toilets, a café and free parking.

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

Trails & Tarmac Backyard Ultra on 6 February 2027 uses a 4.2 mile loop split between trail and tarmac. Medals are awarded at 32 miles and the final runner remaining receives a trophy.

A 7 hour Time Challenge at Dare Valley Country Park offering flexible distances from 3 km up to 50 km, with lap counting for half marathon, marathon and ultra. Finishers receive a medal and a goody bag, with vegan options available.

March 2027

Trail ultramarathon near Crickhowell offering 10, 20 and 40 mile marked routes with GPX files, canicross access, mandatory kit checks, three refuel zones and on site facilities.

April 2027

Beach races at Pendine Sands on 11 April 2027 offering 5k, 10k and Half Marathon on a firm, measured out and back sand course. All finishers receive a bespoke medal and trophies are awarded to category winners.

SheUltra on 17 April 2027 is a 50 km event in Pwllheli, UK. Entries list a £66 fee plus 6 percent booking charge; the event requires mandatory kit, medical fitness, and operates a strict no-crew no-pacers policy.

A trail running event using a heritage steam train between Minehead and Bishops Lydeard, offering 11 km, 11 mile and marathon options. Routes include the Quantock Hills ridgeline and sections of the Steam Coast Trail and England Coast Path.

May 2027

Part of the inaugural Welsh Festival Of Running, the 100 Mile Challenge at Dare Valley Country Park gives runners 34 hours to cover 100 miles on a 5 mile loop. Entries are available for individuals and teams, with a timed 34 hour option.

A trail running event on 29 May 2027 that follows the Heart of Wales Line between Llandrindod Wells and Craven Arms, with way-marked routes and three distance options of 48, 24 and 16 miles.

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