Trail Running calendar near Gloucestershire 2025-2026

The Winter Green Man Ultra (Winter GMU) is a challenging ultra marathon held annually around Bristol, UK. It offers two distances: a 45-mile (72 km) full loop and a 30-mile (48 km) partial loop of the Community Forest Path, both run anti-clockwise in winter. The course features approximately 945 met..

The Hateful 8 Ultra Loop is an endurance running event held at Bridgend Miniature Railway in Aberkenfig, Bridgend, South Wales. Participants tackle a challenging 9-mile mixed terrain loop featuring a tough hill, scenic road sections with stunning views, and a technical downhill forestry trail. Runne..

The Centurion Hundred Hills 50km is a scenic trail ultra marathon held in the Chiltern countryside, starting and finishing at the historic 850-year-old Stonor Park near Henley-On-Thames, England. The race features two distinct 25km loops, covering a total distance of 50km with approximately 4000ft (..

The Nant Yr Arian Silver Trail Races take place in the scenic Cambrian Mountains, offering runners a choice between a Half Marathon and a 10km trail run. The courses feature challenging and varied terrain with spectacular mountain views, suitable for both beginners and experienced trail runners. The..

The Moo-rathon, Calf and Hen K is an exciting running event hosted by Zig Zag Running at Hyde Hall Farm, Buntingford. Celebrating its third year, participants can choose from various distances, including 10k, Half Marathon, Full Marathon, and Ultra Marathon. The scenic route starts at the farm's bas..

Winter's End - 50 Mile Ultra & Marathon is a scenic trail running event held along the South Downs Way National Trail, starting near Arundel, West Sussex, and finishing in Winchester, Hampshire. The event features a 50-mile ultramarathon and two marathon options covering either the first or second h..

The Forest of Dean Spring Trails Half Marathon is a scenic 13.1-mile race held annually in the Forest of Dean, starting and finishing near the Speech House Hotel. The course features well-maintained woodland trails with gentle inclines, offering a multi-terrain experience through beautiful forest la..

The Red Warrior Annual Multi Terrain Races take place at Margam Country Park in the UK, offering challenging 5K, 10K, and 20K distances. The event features separate races for solo runners and canicross participants, allowing runners to compete alongside their dogs. Known for its rugged and varied te..

The Petzl Night Trails 10K at Salcey Forest is a unique night trail running event held near Northampton. Participants run a fully marked, two-lap 10K course on crushed stone paths through the flat but occasionally slippery forest terrain. Runners must use a head or chest torch to navigate the dark t..

The Elephant Challenge by Big Bear Events is a unique 6-hour running event held at Salcey Forest, near Northampton, England. Participants run multiple laps of a 3.5-mile off-road loop through well-maintained forest paths, with terrain consisting mainly of crushed stone and forest floor, offering a n..

The Bath 50 Ultra Challenge is a premier trekking and trail running event held in the historic city of Bath, UK. Participants can choose from 50 km, 29 km, or 10 km looped routes starting and finishing at Bath Racecourse. The course offers scenic views including the Royal Crescent, River Avon, and s..

The Bristol Trail & Ultra, held on 28 March 2026, is a trail running event in Bristol offering two distances: a 25km trail and a 55km ultra. Both races start and finish at Museum Square in central Bristol, taking runners through scenic woodland, riverside paths, parks, and disused railway lines. The..

The Combe Gibbet to Overton Race will take place in Overton on Sunday 29 March 2026.

Ultra In The Black Country is a 32-mile ultra running event held at Baggeridge Country Park near Dudley, West Midlands. The scenic urban loop features mostly traffic-free paths, including disused railway lines, canal towpaths, tunnels, and woodland areas, showcasing the historic Black Country. The c..

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..

The Testway Ultra is a challenging ultra marathon held in Hampshire, England, featuring 40 and 50-mile distances along the scenic Testway footpath. The route stretches from the chalky downs near the Northern Hampshire/Berkshire border to the southern town of Totton in Southampton, showcasing picture..

The Mortimer 10km is a scenic trail running event held in the charming Berkshire village of Mortimer, starting and finishing at Mortimer Fairground. The race features a beautiful two-lap, multi-terrain course that covers woodland trails, footpaths, and bridleways with an elevation gain of 85 meters...

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..

The Henley River Half Marathon, 10k & Junior Race takes place in April 2026 at Temple Island Meadows, Henley-on-Thames, UK. This scenic event features a mixed-terrain, undulating course along the Thames, starting and finishing at the iconic Royal Henley Rowing Regatta launch point. The half marathon..

The Vale Coastal Races, held along the scenic Vale of Glamorgan coastline in Wales, offer three trail running distances: a 32.5-mile ultra marathon, an 18.5-mile "mini ultra," and a 10-mile race. The ultra race starts at Penarth Pier and follows the Wales Coastal Path, featuring clifftop trails, 19..