Trail Running calendar near Builth Wells 2026-2027

An official Backyard Ultra at Blaise Castle Estate on 1 May 2027 where runners complete a 6.7056 km loop each hour until one runner remains. The woodland loop is hilly and technical, head torches are mandatory at night and minimum age is 20..

Trail routes from 5 km to 56 km traverse Exmoor coastline and inland valleys with steep climbs and technical terrain. The event offers marked courses, outposts and onsite camping, and a portion of entries supports CareMoor.

A one day Cotswolds trail event on 2 May 2027 offering six distances from 10K up to a 100KM ultra plus a two person 100KM relay, with feed stations, baggage support and trackers on the ultra routes.

Pretty Muddy 5k at Weston Park is an obstacle course across paths, tracks and grass with some hills and on site parking. Entrants must be at least 13 and take part in staggered wave starts while raising funds for Cancer Research UK.

A 115 km multi-discipline route from Abersoch beach to Snowdon and back, combining a 1.5 km sea swim, road cycling, a mountain ascent via the Watkin Path and a final 1 km beach run.

Multiple trail race distances in the Stroud area using towpaths, disused railway tracks and Cotswold hills, with a route that ascends to Selsley Common for wide valley views. Water, marshals and first aid are provided on course.

Trail races around Moel Famau in the Clwydian Range offering Marathon, Half Marathon and 10k on hilly off-road routes. Checkpoints provide refill taps, mandatory safety kit is required and canicross entries are accepted.

An off-road 10 km run in Llangollen along the canal on 9 May 2027, with an undulating yet quick course. The event includes a finisher medal and a separate one mile race for children aged 5 to 10.

A measured 50 km route from Telford Town Park to Shrewsbury that passes historic sites such as Ironbridge, Buildwas Abbey and Wroxeter Roman City. The event features chip timing, five nutrition stations and a bespoke finish medal.

A 10k trail run at Symonds Yat with riverside views and a notable final one kilometre climb. The mostly off road course includes long gravel firetracks and on site coffee and hot food.

Trail running from Sudeley Castle through the northern Cotswolds with routes from 7 km to 50 km, mixed terrain and staffed outposts. Options include Ultra, Marathon, Half Marathon and shorter distances.

A family friendly inflatable obstacle run in Bristol on 22 May 2027 with inflatable obstacles, music zones and finisher medals. Distances run on repeated 2.5 km laps from 2.5 km to 15 km.

Margam Wild Trail Runs at Margam Country Park on 23 May 2027 offers 5 km, 10 km and half marathon trail routes, is canicross friendly, uses live chip timing, and provides medals and post-race refreshments.

A multi-stage event at Dare Valley Country Park where runners complete five Pure distances within 24 hours, with separate and combined results. Distances include 5k, 10k, 50k, half marathon and marathon.

Trail running on the Heart of Wales Line from Llandrindod Wells to Craven Arms with 50, 26 and 16 mile options. The inaugural event is scheduled for 29 May 2027 and entries open 1 June 2026.

A trail event on the final sections of the 141-mile Heart of Wales Line, offering 50, 26 and 16 mile races that finish at the Shropshire Hills Discovery Centre, with baggage transfer and course checkpoints.

Two trail events in Bristol offering 55 km and 25 km routes that start and finish in the city centre and pass riverside paths, parks and the Clifton Suspension Bridge. Walkers, joggers and runners are welcome.

A point to point half marathon along canal towpaths from Wolverhampton to Brindley Place in Birmingham, featuring a 360 metre tunnel, time trial wave starts and floating drink stations every 3 miles.

A 10 hour loop endurance race on Mynydd Troed featuring a technical 2.7 mile circuit with over 1000 ft of climbing per lap. Solo, pair and four person team entries count laps collectively under a strict 10 hour cutoff.

Beacons Way offers two supported ultramarathon options on 24 and 25 July 2027 in the United Kingdom, organised by GB ULTRAS LTD and forming part of the Ultra Great Britain Race Series with live GPS tracking.