Trail Running calendar near Cardiff 2025-2026

The Westonbirt Arboretum Winter Night Race is a unique running event set in the stunning National Arboretum, featuring over 2,500 tree species. Participants can choose between 5km and 10km routes, which offer a beautiful and varied landscap..

Enjoy a winter run through Westonbirt Arboretum's stunning tree collections on solid underfoot trail style paths. Distances of 5 km and 10 km suit all paces. Tickets are sold out.

Explore the stunning Portland Coastal Ultra Trail along the South West Coast Path with 10k, half and full marathon options. Enjoy rugged sea views, chip timing and a finisher medal; GPS route download required.

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.

Muddy Woody 2026: The Wye Valley Brewery Muddy Woody returns on 8 February at a new Aconbury Court Farm course. About 6 miles of forest and single track with runnable hills, chip timing and a free bespoke Muddy T shirt for finishers. Junio..

Take on the Wiltshire 10, a scenic 10 mile road race from Melksham to historic Lacock and back, with medals for all finishers and age category prizes. Entries capped at 300, book before 1 February 2026 as no entries on race day.

Take on the Wray Valley Trail in Bovey Tracey with Phoenix Running Devon The Launch. Scenic 5.3 km laps along the River Bovey, flexible start times and a keepsake memento for every finisher. Limited to 50 runners, so book early.

Join the Wild & Mild Night Run in South Brent on 14 Feb 2026 for a moonlit trail with two distances. Pick the 9 mile Wild or 5 mile Mild route over Dartmoor tracks and muddy hills under a big moon and mild weather.

Take on the Purbeck Hill Challenge on 14 February 2026 from Knoll Beach, Studland, for a scenic but testing day across heathland and coastal dunes. Choose from four distances to 41 km with optional detailed orienteering and enter solo or as..

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.

Run a flat, traffic free 10k on the National Cycle Network from Calne to Stanley near Chippenham, chip timed and well marshalled on an out and back multi terrain course. A 1 mile fun run for under 17s and limited entries make this a friendl..

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.

Take on the Dartmoor Winter Traverse on 21 February 2026, a fully supported south to north challenge across remote winter moorland open to runners and walkers. Choose 50 km or 30 km routes with guide support and generous cut off times.

Explore Bath's lit Two Tunnels on a unique shared use course, with distances from 500 m fun runs to half marathon routes on tarmac and trail. Wave starts, on course support and a charity donation make this a feel good racing day.

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.

Pair up for a winter challenge across Dartmoor's Eastern Tors, starting from the Rugglestone Inn in Widecombe. This demanding 11 miles route with 830 meters of climb needs teams, required kit and pre entry for a small, limited field.

Run the Hameldown Hammer across Dartmoor at Widecombe in the Moor on 28 Feb 2026, from an inaugural ultra to an 8 mile or half marathon option. Expect rugged trails, big climbs, bespoke medals, and a cupless policy.

Experience coastal trails and stunning views of Durdle Door at Lulworth Cove Trails in West Lulworth on 28 February 2026, with 10K, 27K and 50K options over rugged climbs, descents and stiles. Aid stations, parking and route maps are provid..