Trail Running calendar near Builth Wells 2026-2027

We have found 286 Trailruns within 80 miles of Builth Wells. See below where and when you can find the races.

A night race through Westonbirt Arboretum on 7 February 2026, routed among diverse tree collections. Races are offered over 5km and 10km and tickets are currently sold out.

A short fell race from Cleeton St Mary covering 4.1 km and 229 m ascent. The unmarked route requires map and compass and full kit, and entries are accepted by pre-entry or on the day for runners aged 18 and over.

A winter night trail series in Somerset with three events offering 5 km and 10 km routes. Entrants aged 8 and over can enter single events or the full series and may order a bespoke wooden finisher's medal.

A winter running event at Westonbirt Arboretum on 8 February 2026 offering 5 km and 10 km wave-start races through the arboretum’s tree collections. Tickets are currently sold out.

Trail races across Cannock Chase offer 20, 15, 10 and 5 mile options on undulating forest paths, with route maps, on-site parking and event inclusions such as a bespoke medal and free photographs.

Join the Wye Valley Brewery Muddy Woody on 8 February 2026 for a muddy, runnable trail romp of about 6 miles through forestry and stiff hills. Limited to 300 places, entrants get a bespoke Muddy T shirt and chip timing.

A 10 mile run on 08 Feb 2026 that starts and finishes at King George V Playing Field in Melksham and routes via the village of Lacock. Prizes and medals are awarded, entry restricted to ages 16 and over; the event is closed.

A tough 18 km fell race with 1300 m ascent around Carding Mill Valley, run to FRA rules. Competitors must carry full kit, record checkpoints with an SI dibber and meet strict cut-offs; event proceeds support local charities.

The Love Run on 14 February 2026 at Pengethley Manor offers 5k to ultra options on a tough offroad loop with a seven hour completion limit and virtual entries plus a choice of full or split medals.

Run a flat, traffic free 10k on the National Cycle Network from Calne to Stanley near Chippenham, chip timed and well marshalled on an out and back multi terrain course. A 1 mile fun run for under 17s and limited entries make this a friendl..

Run Brimscombe's canal towpath at the Back to the 80s timed event, choosing any mix of 2.62 mile laps to make 5k to ultra distances. Enjoy a relaxed one hour start window, seven hour limit and a bespoke finisher medal to mark your effort.

A multi distance running event along the River Severn between Ironbridge and Bridgnorth on 21 February 2026. Distances range from 9 miles to 37 miles with 9.4 mile laps and aid stations every 4.7 miles.

A set of city-centre races in Bath that run through two long lit tunnels under the city, with distances from Colourburst fun runs up to a 50 km ultra. Brickfields Park is the hub and the event supports Sustrans with a donation per runner.

A 9.5km off road race at Kinver Edge and The Rock Houses on 22 February 2026, run as two laps around local trails. Limited to 100 runners, entry fee £18; medals for all and prizes for the top three in each gender.

Take on the Sorbrook Slog on 22 February 2026, a lively 7 mile multi terrain race through footpaths, fields and gullies around Sorbrook and Sluvad in Cwmbran. Enjoy marshals on course, post race tea and cake and a finishers goodie bag.

Join a weekend fell and trail running retreat in the Black Mountains, Wales from 27 Feb to 1 Mar 2026 at Dinas Castle Inn. Guided runs on the Dragons Back ridge, skills coaching and bunkhouse accommodation make for an inspiring weekend for..

Castle 2 Castle Ultra is a 32 mile ultramarathon from Powis Estate in Welshpool to Caffi Wylfa in Chirk, blending fast flats with rolling footpaths for a scenic but testing challenge. This sold out event awards finishers a commemorative pla..

A 25 mile, 10 hour route starting and finishing at Minsterley Village Hall, with the exact course revealed on the day. The walk includes three serviced checkpoints, mandatory navigation with OS Explorer Sheet 216, and is for adults only.

Take on the Cannock Chase Wildwood Trail Series on 28 Feb 2026 at Birches Valley, a scenic yet testing woodland course with steep climbs, fast descents and technical, muddy trails. Half and 10K with canicross options and eco wooden medals.

March 2026

A point-to-point, fully marked long-distance race along the Taff Trail from the Brecon Beacons to Nantgarw, covering about 70 km. The course mixes upland trails and valley cycle paths, with six checkpoints and a Merthyr drop bag for mid-rac..