Trail Running calendar near Thornbury 2025-2026

Run a scenic 27 km loop from Sidmouth Watersports Hub, visit four trig points in order and tackle about 900 m of climb along coastal cliffs. Supportive local event with a slate finisher medal and proceeds to Cardiac Risk in the Young.

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.

Take on the Wiltshire 10, a scenic 10 mile route from Melksham to picturesque Lacock, with medals for all and prizes in veteran categories. Entry capped at 300 with on site facilities and water stations.

Tackle scenic bridleways and ancient woodland trails at The One in the Woods, Henley, with a half marathon, 10k and family Little Sprinters 1k. Enjoy a lively event village and a finisher medal to celebrate your run.

Tackle the Purbeck Hill Challenge 2026, a one day navigation run across the Purbeck Hills and Jurassic Coast from Knoll Beach. Choose four distances, solo or pair, and tackle orienteering through wild coastal terrain.

Take on the rolling countryside at Dalwood 3 Hills on 15 February 2026, with 10 mile, 5 km and 3 km trail routes featuring hills, mud and river crossings. Friendly village HQ and rustic parking promise a proper off road winter challenge.

Join the SMaRTT Smasher on 15 February 2026 in Calne for a flat, traffic free 10k along the national cycle network to Stanley and back. A lively 1 mile fun run for under 17s adds family fun and all finishers get a memento.

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.

Choose distances from 9 miles up to a 37 mile ultra on the Winter Railway Ultra, a scenic route along the River Severn on a disused railway between Ironbridge and Bridgnorth. Enjoy regular aid stations, great riverside views and nearby vill..

Experience Bath's Two Tunnels from Brickfields Park, running through lit, traffic free tunnels and scenic river and trail sections. Distances range from 500 m to a 50 km ultra and marathon, but entries are sold out.

Enjoy a scenic off road 9.5 km trail around Kinver Edge and the Rock Houses, run as two laps over tracks and trails. Limited to 100 runners, the event includes medals, finish goodies and prizes for the top three in each category.

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.

The Terminator 2026 is a tough but rewarding 12 mile trail race around Pewsey, Wiltshire, mostly off road with muddy climbs and high point views. All finishers receive a unique T shirt and race village treats await.

Run the dramatic Dorset coast at Lulworth Cove Trails on 28 February 2026, with 10K, 27K and 50K routes starting from Daggers Gate. Rugged trails, cliff views over Durdle Door and well stocked aid stations make for an unforgettable day.

Castle 2 Castle Ultra is a sold out 32 miles run from Powis Estate in Welshpool to Caffi Wylfa in Chirk, blending fast flat paths, rolling footpaths and open views. Prizes await top finishers and everyone gets a finisher plate and goodies.

Tackle the 25 mile South Shropshire Circular from Minsterley Village Hall, a navigational challenge across scenic hills with checkpoints and a 10 hour limit. Organised by LDWA and currently full with a waiting list.

Run the scenic Brecon to Cardiff Ultra, a fully marked 70 km one way race along the Taff Trail on 1 March 2026. Enjoy epic views, checkpoint support and a finishers medal as you cross the line at Coleg y Cymoedd in Nantgarw.

Take on the Brecon to Cardiff Xtreme, a winter mountain trail offering a challenging 75 km ultra or a 26.2 mile marathon across rugged ridges. Navigation, big climbs and stunning upland views make this a true mountain test.

Run the Weymouth Bay 10K on 1 March 2026 along a mostly flat, measured seaside course from Bowleaze Cove to Pleasure Pier. Entries open for 15 plus with on day registration and proceeds support Margaret Green Animal Rescue.

Tackle the Imber Ultra, a scenic 33.5 mile multi terrain trail run around the Imber Range on Salisbury Plain, starting in Westbury. Organised as a charity fundraiser, this classic March ultra promises tough trails, great camaraderie and fin..