Trail Running calendar near Kemble 2025-2026

The Two Tunnels Races, held in Bath, UK, offer a unique running experience featuring the longest underground sections in the UK. The course passes through the historic Devonshire Tunnel (408m) and Combe Down Tunnel (1672m), both well-lit and surfaced, providing a flat and scenic route beneath the ci..

The Centurion South Downs Way 100® is a challenging 100-mile non-stop ultramarathon held annually in Southern England, following the entire South Downs Way National Trail. Starting near Winchester and finishing in Eastbourne, the course features stunning rolling hills, ancient forts, picturesque vil..

The Centurion South Downs Way 50km is a challenging non-stop trail race held entirely within the South Downs National Park in Southern England. Starting at Matterley Bowl near Winchester, the 50km course follows the scenic South Downs Way National Trail, featuring rolling hills, ancient forts, pictu..

The Cotswold Way Ultra Challenge is a premier endurance event held in the scenic Cotswolds, starting and finishing at Cirencester basecamp. Participants can choose from multiple distances including 100km, 75km, 50km, 25km, and a 10km option, suitable for walkers, joggers, and runners of all experien..

Offa's Dyke 15 is a renowned off-road running event held in Hay-on-Wye, Hereford. The race covers a challenging 15-mile course along the historic Offa's Dyke path, offering runners a scenic yet demanding trail experience. Originally popular from 1977 to 2001, the event was revived in 2015 with the h..

The Gnosall 10K is a scenic multi-terrain race held in the village of Gnosall, Staffordshire, starting and finishing at the Gnosall Family Sports Club. Covering approximately 11.2 km, the course features picturesque routes along the Shropshire Union Canal, disused railway lines, farmland, woodland,..

The Cheddar Gorge Challenge is a demanding off-road running event held at Warren Farm, Charterhouse, Somerset, within the stunning Mendip Hills Area of Outstanding Natural Beauty. Offering distances from 1km fun runs to a full marathon, the course features diverse terrain including open fields, flat..

The Three Shires Way Ultra & Marathon, organized by Race Harborough, is a trail running event held in the rural landscapes and ancient woodlands of Buckinghamshire, Bedfordshire, and Northamptonshire. The event features two distances: a 50-mile ultra and a marathon, both suitable for beginners and e..

P24 - The Longest Attended Day is a unique endurance running event held at Denbies Wine Estate in Dorking, Surrey. Participants run one mile every hour on the hour for 24 consecutive hours, covering a total of 24 miles on a mostly flat off-road trail through the scenic wine estate. The event feature..

The Centaur 100 Mile Ultra, hosted by Phoenix Running, is a unique 100-mile trail running event held at Denbies Wine Estate in Dorking, Surrey. The course features a flat-ish, single 1-mile loop through the estate's trails, designed to be accessible for both seasoned ultra runners and first-timers...

The Phoenix Denbies Marathon & Half Marathon, held at Denbies Wine Estate in Dorking, Surrey, offers a unique off-road trail running experience on a flat-ish 1-mile loop with slight inclines. Scheduled for June 2026, the event features flexible start times over a 30-hour window, allowing runners to..

The Dunstable Downs Half Marathon is a scenic 21.2 km trail race held at the National Trust’s Dunstable Downs estate in the UK. Featuring over 450 meters of elevation, the course offers a challenging mix of sweeping ridge views, fast descents, and tough climbs, making it suitable for trail runners o..

Run The Seasons at Cowdray is a scenic trail running event held on the Cowdray Estate in Midhurst, set above the world-class polo fields and overlooking the Cowdray Ruins and South Downs National Park. Participants can choose from 5km or 10km distances, including dog-friendly canicross options. The..

The Colworth Marathon Challenge is a unique running event held at the scenic Colworth Estate in North Bedfordshire, UK. It features three races over three days, combining distances of 5 miles, 8.1 miles, and a half marathon of 13.1 miles, totaling the full marathon distance of 26.2 miles. The event..

The RunThrough Marlow Trail Run, held on June 28, 2026, takes place at Marlow Rugby Union Football Club in the scenic Thames Valley. This off-road event offers three distances: Half Marathon, 10K, and 5K, with the 5K consisting of two laps and the others one lap each. The trail features well-marked..

The Birmingham Black Country Half Marathon is a scenic point-to-point race held between Wolverhampton City Centre and Brindley Place in Birmingham, following canal towpaths. The largely flat course features varied terrain including gravel tracks, trails, and pavement, with notable highlights such as..

The Chiltern Ridge Half Marathon is a challenging 21.1 km trail race held along The Ridgeway National Trail in Buckinghamshire, between Wendover and Princes Risborough. Starting and finishing in Wendover, the course features an undulating forest loop at Whiteleaf Hill Nature Reserve and offers stunn..

The MTC Severn Path Ultra is a 59-mile point-to-point ultra marathon starting in Shrewsbury and finishing in Worcester, UK. The mostly flat course follows the River Severn, passing scenic landmarks such as Ironbridge, Jackfield, and Coalport. Runners experience stunning riverside views through towns..

The Black Mountains 50 is a challenging ultramarathon event held in the scenic Black Mountains within the Brecon Beacons National Park, starting and finishing at Longtown Hall, Herefordshire. Scheduled for July 11, 2026, it offers multiple distances: 50 miles (80 km), 32 miles (50 km), a marathon (2..

The MTC Severn Way Ultra is a 57-mile point-to-point ultra marathon held in the UK, starting at Travelodge Worcester and finishing at Travelodge Stonehouse. The course follows the scenic Severn Way, passing through towns like Upton-on-Severn, Tewkesbury, Gloucester, and several riverside villages. T..