Trail Running Calendar South West (England) 2025-2026

The Westonbirt Arboretum Winter Night Race is an exciting running event set in the stunning National Arboretum, featuring over 2,500 tree species. Participants can choose between 5km and 10km routes, which showcase the arboretum's diverse landscapes and solid terrain, providing a unique blend of tra..

The Portland Coastal Marathon is an ultra trail running event held at the Weymouth and Portland National Sailing Academy in Portland, UK. Scheduled for February 8, 2026, it offers a full marathon, half marathon, and 10k distances, catering to all abilities. The course follows the scenic Portland sec..

The Westonbirt Arboretum Winter Day Race is a scenic running event set in the stunning National Arboretum, featuring over 2,500 tree species. Participants can choose between a 5km or 10km race, with routes that showcase the beauty and diversity of the arboretum's landscape. The event is designed to..

The Wild & Mild Night Run is a challenging trail race held in South Brent, UK, featuring 9-mile and 5-mile distances across trail and open moorland. The course begins with a mainly uphill stretch along the river to Shipley Bridge, followed by a tarmac section before entering Dartmoor. Runners naviga..

The Dalwood 3 Hills is a popular multi-terrain running event held in Dalwood, near Axminster, Devon. Returning in 2026, it offers three distances: a challenging 10-mile course featuring hills, mud, and river crossings; a 5km "Dalwood Dash" with similar terrain; and a new 3km "Dalwood Doddle" fun run..

Dartmoor Winter Traverse is a fully supported 50 km route across Dartmoor’s remote moorland, with a 30 km Princetown to Meldon option. Organized by Climb South West, it is open to runners and walkers, and takes place in February, featuring a winter atmosphere with rough, off-road terrain and limited..

The Ironwood Challenge, organized by Nailsea Running Club, is a trail race near Long Ashton, North Somerset. The six-mile course runs through woodland, fields and forest, with sections that are often muddy. It is fully marked and marshalled, and chip timing is included for the first year.Off-road sh..

Two Tunnels Races in Bath, UK, organized by Relish The Great Outdoors, offer a unique underground running experience alongside city scenery. The courses pass through the Devonshire Tunnel (408m) and the longer Combe Down Tunnel (1672m), both well-lit and surfaced as a shared-use path—the longest und..

Hameldown Hammer is OuterEdge Events’ Dartmoor trail-running event held in Widecombe-In-The-Moor. The programme includes three races: the Hameldown Hammer Half-Marathon, the Hameldown 7EVEN (now 8 miles), and the inaugural Hameldown Ultra Hammer. The Half-Marathon features over 800 metres of ascent..

The Imber Ultra is an annual trail running event covering over 33 miles, organized by Avon Valley Runners and the Rotary Club of Westbury. Held in the scenic Wiltshire area, the race offers a challenging course with multiple checkpoints, attracting trail running enthusiasts seeking a long-distance a..

The Weymouth Bay 10K is a scenic charity fun run held in Weymouth, Dorset, starting at Bowleaze Green near the Riviera Hotel. The course is an accurately measured out-and-back route featuring two laps, extending towards Pleasure Pier and returning via Overcombe. The mostly flat road terrain (88%) of..

Cousin Jack is a rugged coastal trail race double bill from Bys Vyken Events in Cornwall. The Classic Jack covers about 18 miles from St Just to St Ives along the South West Coast Path, delivering mud, rocky headlands, steep climbs and boggy sections with constant elevation changes and rewarding coa..

The Winter GMU is a challenging ultra marathon held annually around the City of Bristol, featuring 30- and 45-mile distances on a scenic loop following the Community Forest Path. The winter edition runs the course anti-clockwise, often presenting muddy and tough conditions, contrasting with the firm..

Forest of Dean Spring Trails Half Marathon is a race in the Forest of Dean, starting on a road near the Speech House Hotel and finishing there again after a loop through forest trails. The official distance is 13 miles 192.5 yards. The course is multi-terrain, with gentle inclines and is fully signp..

The Way of the Dead is a challenging 50k running event traversing Dartmoor from east to west, organized by Wild Running. Participants can compete solo or in pairs, with live GPS tracking and three checkpoints that also serve as feed stations. The route features minimal ascent of 1389 meters but requ..

Beyond Bristol, the Bristol Trail & Ultra by Beyond Trails offers two distances: a 25km Trail and a 55km Ultra, starting and finishing at Museum Square in central Bristol (BS1 4RN). The course travels off tarmac through woodland, riverside paths, parks, and disused railways, with highlights such as..

Bath 50 Challenge, part of the Ultra Challenge series, takes place in the City of Bath with start and finish at Bath Racecourse Basecamp. Participants can choose a 50 km loop (about 1,000 m ascent), a 29 km loop (650 m), or a 10 km loop (~200 m). The course loops around Bath, offering panoramic view..

The Minster Challenge 2026, held in Axminster, Devon, offers three running distances: 12km, 5km, and a 3km fun run suitable for all ages. Organized by Ruby Red Running in partnership with Axe Valley Academy, the event features a challenging course with hills and mud, promising an engaging trail runn..

Steaming to the Coast is a unique trail running event held along the scenic West Somerset Railway in Minehead, Somerset. Utilizing the UK's longest standard gauge steam railway, participants ride a steam train from Minehead to Bishops Lydeard before embarking on their runs. The event offers three di..

Exe to Axe is a two-event coastal trail race organized by Sidmouth Running Club. The flagship Exe to Axe covers 22 miles along the South West Coast Path from Exmouth to Seaton, with about 4000 feet of ascent, offering a challenging yet scenic route that is celebrated for its beauty. The event also f..