Trail Running calendar near Marlborough 2025-2026

The Rose of the Shires Ultra is a scenic 54-mile circular ultra marathon held in Northamptonshire, starting and finishing at Brixworth Country Park. The course features approximately 70% trails, including country paths, towpaths, and forest tracks, with the remaining 30% on roads. Runners traverse b..

The 50 Mile Grand Slam 2026, organized by Centurion Running, is a series of four challenging 50-mile ultramarathons held across iconic UK trails. The event includes the South Downs Way 50, North Downs Way 50, Chiltern Wonderland 50, and Wendover Woods 50, taking place between April and November 2026..

The Wild Horse South Wales 200 is an epic 200-mile ultramarathon traversing the scenic trails and mountains of South Wales. The course begins in Chepstow and finishes at Worm’s Head, following iconic routes such as Offa’s Dyke, the Beacons Way, the Heart of Wales Line, and the Wales Coast Path. This..

The MTC Afanc is a challenging 39.8-mile ultra marathon held in Wales, starting at the River Wye Activity Centre in Glasbury and finishing at Merthyr Tydfil. The entire route follows the scenic National Cycle Route 8, offering runners a spectacular course with an ascent of over 4,200 feet and descen..

The Spring Trail Series by Ultra X is a trail running event held at the Cowdray Estate in Surrey, within the scenic South Downs National Park. The series features five race distances: 12km, 25km, 50km, 50 miles, and 110km, all starting and finishing at the same location near Cowdray Farm Shop. The c..

The Chiltern Ridge Classic 50K is an iconic ultra marathon held in the Chiltern Hills, UK, featuring a challenging 51 km trail run with 996m of elevation gain. Starting at historic Berkhamsted Castle and finishing at Hampden Meadow in Wendover, the course traverses stunning ridgeline trails includin..

The Windsor 50 Ultra Challenge, formerly known as the Easter 50, is a premier UK trail running and trekking event held at Windsor Racecourse. Scheduled for April 18, 2026, it offers three looped distance options: a 50 km ultra, a historic 25 km, and a 10 km challenge. Participants traverse scenic ro..

The Beast of the Beacons is a challenging trail running event held in the stunning Brecon Beacons National Park, starting and finishing at Llangynidr Village Hall. Scheduled for April 18, 2026, it offers three distances: 10, 20, and 40 miles, with elevation gains up to 8,438 feet on the longest rout..

Cymoedd Sir Fynwy is a challenging mountain walking event organized by South Wales LDWA, held in Abergavenny, Wales. It features three distance options: 50 miles, 30 miles, and a new 20-mile route, all exploring the rugged terrain of the Black Mountains and the World Heritage Site of the Forgotten L..

The MTC Y Draig Goch is a challenging 34.8-mile ultra running event held in Wales, starting from Travelodge in Merthyr Tydfil and finishing at Marco's Cafe on Barry Island. It forms Day 6 of the six-day MTC CYMRUN, part of the Mount to Coast End to End Challenge Series. The route follows the scenic..

The Thames Ring 250 is an iconic 250+ mile ultramarathon loop starting from Goring, following the River Thames into London, then along the Grand Union Canal and back down the Oxford Canal to the finish. Established in 2009, it was the first race of its kind, known for its challenging course and high..

The Butcombe Trail Ultra is a self-navigation ultramarathon held in the Mendip Hills, an Area of Outstanding Natural Beauty in the UK. Organized by the Town and Country Harriers, the event offers two race distances: 50 miles and 50 kilometers. The mostly off-road course features scenic running terra..

The Malvern Hills 18 Miler is a guided trail running event organized by Running Adventures, taking place in the scenic Malvern Hills, UK. The route covers approximately 18 miles with over 1300 meters (4400 feet) of elevation, traversing the Malvern ridge and visiting all its summits. Runners experie..

The Bath Beat is a walking and running event held on the southeastern edge of Bath, England, featuring distances of 12.5, 17, 21, and 26.5 miles. The course traverses the scenic countryside of the southern Cotswolds, including woods, hills, river valleys, farmland, and a historic disused canal. Part..

The A Coventry Way Challenge is a 40-mile running or walking event set in the scenic countryside around Coventry, starting and finishing at the Heart of England Social Club in Meriden. Open to individuals aged 18 and over, participants can take part solo or in relay teams. The course features five c..

The Garmin UK Trail Running Festival 2026 takes place at St Giles House, Wimborne St Giles, offering a variety of trail running events including a marathon, half marathon, 10K, 5K, and junior races for children as young as 0 years. The festival features scenic courses designed to inspire runners to..

The Drop - Winchester is a unique and challenging race held in Winchester, UK, offering participants a thrilling test of resilience and navigation skills. Competitors choose between a 10-mile or 15-mile course, either solo or in teams. The race begins with a blindfolded bus ride to an undisclosed dr..

Saturn Running's "The Nearly But Not Quite London Marathon - Wales" takes place at Dare Valley Country Park in Aberdare. This inclusive event offers runners the flexibility to choose their distance within a 7-hour time challenge, with laps of approximately 4.37 miles (7km) on well-maintained footpat..

The East Devon Round is a challenging trail running festival held in East Devon, near Honiton, featuring ultra-distance races through stunning countryside. The main event covers approximately 68 miles with over 10,800 feet of elevation, passing through three National Landscapes, the Jurassic Coast W..

The Portland Pig Backyard Ultra is an ultramarathon event held at Grove Farm Estate, Portland, Dorset. Participants run a 4.167-mile (6,706 meters) loop every hour, starting on the hour, continuing until only one runner remains. The course features diverse terrain including grass, gravel, track, tar..