Trail Running calendar near Builth Wells 2026-2027

We have found 314 Trailruns within 80 miles of Builth Wells. See below where and when you can find the races.

Experience a self-navigation ultramarathon through the beautiful Mendip Hills. Choose between the 50 mile or 50 km off-road courses starting from the Mendip Activity Centre for a challenging trail running experience.

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Experience the beauty of Shropshire on a 10 or 22 mile course climbing Abdon Burf and Wenlock Edge. Enjoy a well supported route with homemade cakes and refreshments starting from the historic Holdgate Church.

Run your own distance on a 7-hour timed course through Parc Taf Bargoed in South Wales. Choose from 5k to ultra on a flexible, scenic loop starting from Trelewis. Walkers and runners are welcome with staggered starts and full event support.

Follow the scenic Monmouthshire and Brecon Canal on this supported 40 mile point to point journey from Malpas to Brecon Basin. Enjoy a flat towpath route through the heart of the Welsh countryside with a 15 hour time limit.

Experience a scenic 13 mile offroad race across the ridge of the Malvern Hills. This hilly trail event features a friendly atmosphere with no cut off times and well stocked aid stations for all runners.

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Complete a 41.4 mile circular route around Coventry through the scenic Warwickshire countryside. This annual event welcomes solo runners, walkers, and relay teams for an off road challenge with full checkpoint support.

Test your endurance at Eastnor Castle with solo or relay backyard challenges on a mud free four mile loop. Enjoy a scenic parkland course with on site camping and refreshment stations in the heart of Herefordshire.

Enjoy a flexible 7 hour time challenge at Dare Valley Country Park with distances ranging from 3km to ultra marathon. Run or walk through scenic countryside on well maintained paths and celebrate with a themed medal and ice cream.

A family oriented 2.5K and 5K event at Aston Park where every finisher receives a cuddly teddy. The run raises funds for Birmingham Children's Hospital and finishes with a teddy bears picnic.

May 2026

Experience a challenging trail event along the Worcestershire Way with four distance options up to 47 miles. Navigate steep climbs with support from checkpoints and pace leaders to earn a bespoke finishers medal.

Experience a mountain adventure through the Bannau Brycheiniog National Park with circular routes starting in Brecon. Choose between 100km, 75km, or marathon distances featuring significant elevation and iconic ridge traverses.

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Experience an epic guided traverse of the fifteen 3000 foot peaks in Snowdonia. This 48 km mountain run includes 4000 meters of elevation gain across three iconic ranges with full support and logistics provided.

Experience 30 miles of Welsh beauty on a circular route from Llanidloes. This inclusive trail event features 4,356 feet of elevation gain with no time limits and fully stocked checkpoints.

Run a half or full marathon through the scenic Shropshire Hills and Long Mynd. This exclusive event is limited to 200 runners and features a challenging lap course with a commemorative finisher medal.

Experience the dramatic coastline and steep moorland of Exmoor National Park across five trail distances. Run past towering cliffs and through the Valley of Rocks on technical terrain starting from Lynton.

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Experience a weekend of trail running in the Cotswolds with distances ranging from a 10K to a 100KM ultra marathon. Starting from Ilmington these UKA regulated races now include a new 50K option for all participants.

Join a guided mountain run across the Moelwyns leg of the Paddy Buckley Round. This 35 km route from Capel Curig features 2,500 m of ascent through the technical terrain of Snowdonia National Park.

The Sirhowy Challenge is a 10 mile multi-terrain race featuring a 1,500ft climb to Machen Trig Point. Participants enjoy a scenic loop through the Sirhowy valley with awards and a finishers social at the local club.

Run your own distance along the scenic Stroud Waterways canal in this flexible timed event. Start when you like within a one-hour window and see how far you can go in seven hours. Every participant gets a finisher's medal.

The Devauden Races is an annual off-road charity event for the Severn Area Rescue Association. Runners and families can choose from 10k, 5k, 2.4k, or a 60m junior dash on the scenic trails of Chepstow Park Woods. The event starts and finish..