Trail Running calendar near Builth Wells 2025-2026

Take on the MTC Thames Challenge, a four day 184 mile ultra along the Thames Path from the Cotswolds to Greenwich. Choose solo or relay and enjoy shared accommodation, evening meals and daily kit transfers.

Tackle the 57 mile point to point MTC Cotswold Ultra along the scenic Thames Path through Cotswold countryside. Finishers receive a bespoke medal, every runner gets an MTC visor and checkpoints plus GPX keep you supported.

Tackle the Mendip Marauder on 8 August 2026, a rugged trail challenge offering 30 mile and 50 mile routes across woodlands, hilltops and classic Mendip landmarks. Both distances finish on Uphill Sands Beach in Weston Super Mare for a glorio..

The Brecon Beacons 51k will take place in Talybont-on-Usk on Saturday 8 August 2026.

Open to Offas on 8 August 2026 from Cilcain Village Hall invites runners and walkers to follow the Offa's Dyke Path over Moel Famau. Pick 16, 24 or 32 mile routes through the Clwydian Hills with checkpoints, refreshments and a joyful finish..

A sharp 4.4 km fell race from the Ragleth Inn in Little Stretton featuring 390 m of climb and great ridge views; a fast, testing course for keen fell runners. Pre entry via SI Entries or entries on the day are welcome.

SkyRun Eryri brings classic Snowdonia skyrunning to Rhyd Ddu with four mountain trail races from a technical 55 km ultra to shorter scenic challenges. Expect rocky scrambles, grassy ridges and towering Welsh 3000s views.

Experience Bath's Two Tunnels run along restored railway paths, choosing distances from 500 m Colourburst to marathon and ultras. Organised by Relish The Great Outdoors with Sustrans support, this popular community event is sold out.

Join the Crook Peak Cake Race in Axbridge on Wed 19 Aug 2026 for a spirited 3 mile fell challenge across stunning Somerset hills, finishing with cake and community cheer. On the day entry available for runners aged 14 and up.

Discover the Summer MTC Green Man Ultra around Bristol's Community Forest Path with 45 and 30 mile clockwise routes finishing at Ashton Park School. With festival style checkpoints, a bespoke Green Man medal and a challenging scenic route.

Tackle rugged trails and dramatic escarpments at the Beast of Llangattock at Park Farm near Crickhowell, with distances from 10 km to a 51 km ultra. Expect steep technical terrain, well stocked aid stations and sweeping hilltop views.

Enjoy scenic single lap 5K and 10K trail runs around Wimbleball Lake, with a canicross option for runners and their dogs. Part of the Wimbleball Sports Festival, it promises off road views, medals and a friendly festival vibe.

Run point to point along the Cambrian Way into Cardiff with two scenic trail ultra options, 44 miles from Llanthony Priory or 33 miles from Abergavenny. Expect rugged fells, woodlands and a dramatic finish near Castell Coch.

Join Worcester Woods parkrun every Saturday where Pershore Plum Plodders often gather to run, chat and enjoy refreshments after the run. Friendly, community focused and great for beginners and regulars alike.

Take on the RIDUM 30 mile ultra on September 5, 2026 exploring ridge top trails around the Rhymney Valley with big climbs and mostly off road terrain. Well stocked checkpoints and post race care await finishers.

Take on the Yr Wyddfa Snowdon Ultra 100, a 102 mile mountain ultramarathon across rugged Snowdonia with roughly 5,172 m of ascent and demanding self navigation. Limited to 250 runners, it features checkpoints, live GPS tracking and a 42 hou..

Take on the Yr Wyddfa Snowdon Ultra 50, a rugged 45 mile mountain ultra through iconic Snowdonia peaks including Yr Wyddfa and Tryfan. Expect big climbs, GPS tracking, strict kit rules and a limited field for a true high mountain challenge.

Run the rugged beauty of the Shropshire Hills at Battle of the Borders, starting from Carding Mill Valley and tackling the dramatic Long Mynd ridges. Choose marathon, half marathon or 10K on waymarked, scenic but rewarding trails.

Join a scenic charity 10k across Staffordshire countryside, starting and finishing at the canal side Hartley Arms in Wheaton Aston. With only 150 places, the race finishes with music and food at the pub to celebrate local charities.

Join the Ross on Wye Riverbank Run on 6 September 2026 for scenic multi terrain 5k, 10k and a family fun 500m along the River Wye. Flat, fast course, chip timing and medals for all finishers make it perfect for racers and families alike.