Trail Running calendar near Thornbury 2025-2026

Enjoy a scenic, multi terrain loop around Chasewater Reservoir this Easter with friendly marshals, bespoke medals and optional costume fun. Distances from junior runs to 20k make it perfect for families and club runners alike.

Take on the Mortimer 10km through scenic Berkshire woodlands on Monday 6 April 2026. This undulating two lap off road course features chip timing, medals and a dog friendly canicross start for runners with dogs.

Take on West Wight 3 Hills, an undulating 8 mile coastal loop from Freshwater that climbs Tennyson Down and Alum Bay. Organised by Ryde Harriers, it is scenic, testing and gives every finisher a souvenir.

Steam to the coast then run back to Minehead along scenic trails and the ridgelines of the Quantock Hills. Choose 11 km, 11 miles or the 26.2 mile marathon as heritage steam trains ferry runners to their starts.

Run along the banks of the River Thames in Henley with half marathon, 10K and junior races, chip timing, unique medals and free race photos. Event village serves food and drinks and the event supports the Royal Berks Charity.

Discover the Vale Coastal Races on 11 April 2026 with 32.5 mile ultra, 18.5 mile and 10 mile trail options. The Wales Coast Path hugs cliffs, beaches and coves, finishing at Ogmore by Sea with marked notes and checkpoints.

Enjoy stunning coastal, woodland and dune trails at Oxwich Bay with 5 km, 10 km or a self navigated half marathon. Part of the Run The Trails Series, the event is timed and all finishers receive a medal.

Run the scenic South West Coast Path from Exmouth to Seaton in the annual Exe to Axe, finishing on Seaton beach opposite the Mariner's Hotel. Choose solo, relay or half distances with checkpoint support and chip timing.

The Big Cheese is an off road fell race in Cheddar, Somerset, covering 15 miles across the Mendip Hills with over 2,000 ft of climb. Take on a fully marked course and enjoy a finisher's medal plus tea and cake at the end.

Take on the Wild Horse 200 series: two epic 200 mile trail ultramarathons across Welsh trails and mountains. Run the South Wales coast route from Chepstow to Worm's Head in April or the Mid Wales loop from and to Machyntlleth in June.

Take on the inaugural MTC Gelert 47 mile ultra from Barmouth to Llanidloes on 16 April 2026, the third day of the MTC CYMRUN end to end. Limited field, bespoke medal for all finishers and real time tracking for supporters.

Take on the inaugural MTC Afanc, a one day ultra of about 39.7 miles along National Cycle Route 8 with over 4,200 ft of ascent. Limited entry and GPS tracking make this intimate but demanding race ideal for seasoned ultrarunners.

Join the Shropshire Way 80K Festival on 18 April 2026 in the Shropshire Hills for one day of trail running and walking across hill summits, ancient woodland and market towns. Choose routes from 10K to 80K, enjoy local food on course and sup..

Run the Chiltern Ridge Classic 51K with 996m of climb across Ashridge, Ivinghoe Beacon and The Ridgeway from Berkhamsted Castle to Wendover. A UTMB Index event limited to 400 runners with a fully marked course and aid stations.

Join a guided 18 mile trail run along the Malvern Hills ridge, summiting the peaks and tackling 1300 m of ascent with a qualified coach. Not a race; expect steady trail pace, stunning views and friendly company.

Run the Beast of the Beacons in the Brecon Beacons National Park with 10 mile, 20 mile or epic 40 mile routes over ridges, reservoirs and technical forest trails. Well marked courses, marshals and stocked checkpoints deliver a bold, support..

Explore the Black Mountains and the Forgotten Landscape above Blaenavon with 20, 30 or 50 mile options on April 18 and 19 2026. Routes thread past Cwmyoy, Llanthony and along the Monmouthshire and Brecon canal for a rugged scenic challenge.

Take on a scenic 34.8 mile one day ultra from Merthyr Tydfil to Barry Island along National Cycle Route 8 on 19 April 2026. Limited to 40 runners, this inaugural edition offers an intimate yet epic challenge with a coastal finish.

Martley Madness is a scenic 10 mile trail and country lane race around Rodge Hill on 19 April 2026. Organised by Worcestershire Trailblazers, the event features chip timing, bespoke medals and raises funds for Cardiac Risk in the Young.

The Thames Ring Series is a multi distance trail event from Streatley on Thames, featuring the roughly 250 mile Thames Ring 250 counterclockwise loop along canals and towpaths. Scenic and largely flat, it takes place 22 to 26 April 2026.