Trail Running calendar near Buckingham 2025-2026

The Zig Zag Marathon and Half Marathon take place at the Suffolk Running Centre in Bury St Edmunds, UK. The marathon follows the officially measured, scenic Kirtling Route, which is fully on road and mildly undulating, while the half marathon uses the Windmill Route, both featuring quiet roads. The..

The Halstead & Essex Marathon, held annually since 1995, is a scenic marathon event located in North Essex, starting at Halstead Leisure Centre. The course features low-traffic roads winding through picturesque rolling hills, woods, and farmlands, offering runners a beautiful and tranquil setting. O..

The Centurion North Downs Way 50® is a challenging 50-mile point-to-point ultramarathon held annually along the North Downs Way National Trail in England. Starting in Farnham, Surrey, and finishing at Knockholt Pound near Greater London, the course features approximately 5,600 feet of elevation gain..

The Reigate Priory Park 10K is a scenic charity fun run held in Priory Park, Reigate, Surrey. The course features a 250-meter start plus four laps on an accurately measured, gently undulating cross-country terrain surrounded by lush greenery. Suitable for runners of all levels, the event fosters a f..

Farmmageddon is an endurance running event held at Hyde Hall Farm, Buntingford, SG9 0RU. Returning for its second year, the event features a challenging 100-mile race completed over 32 hours across two days. The course consists of a 5.3 km loop combining trail, grassland, and some tarmac paths, suit..

The London 2 Brighton Ultra Challenge is a premier endurance event in the UK, offering multiple distances including 100km, 75km, 58km, 42km (Sussex Marathon), 25km, and a 10km option. Starting mainly from Richmond-Upon-Thames, participants traverse the scenic North Downs and Surrey & Sussex countrys..

The Grim Reaper Running Festival 2026 takes place at the scenic Grimsthorpe Castle Estate in South Lincolnshire. This multi-distance event offers solo races of 10, 40, 70, and 100 miles, plus a 100-mile team relay. The course features a fully marked 10-mile loop combining grass trails through ancien..

The Three Castles 50km Ultra Marathon is a scenic race held in Kent, England, starting in Rochester and finishing at Tonbridge athletics track. The flat course follows the River Medway, passing three medieval castles, charming villages, and lush countryside along the Medway Valley Walk. Runners expe..

The Beat the Sunset 50km ultramarathon takes place in Maidenhead, Berkshire, starting and finishing at the NMCC Sports Club. This multi-terrain course is fully marked and features four checkpoints approximately every 10km, with a personal nutrition drop available in the latter half. The event offers..

The Ridgeway Challenge is an 86-mile (139 km) point-to-point trail running race along the entire length of The Ridgeway National Trail in England. Starting at Ivinghoe Beacon in Hertfordshire and finishing at the Avebury Stones in Wiltshire, the course follows a historic path that has existed for ov..

The Circuit du Sore Legs is an annual running event held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. Now in its sixth year, it offers a unique challenge of completing various distances on a 400-meter athletics track, including 5k, 10k, half marathon, full marathon, 50k ultra, an..

The Sundowner Marathon is a unique running event held in Purleigh, Chelmsford, England. The course offers a scenic route that takes participants along canals, over waterfalls, through vineyards, woodland, and coastal saltmarshes. This marathon stands out by starting early on a summer evening and con..

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 Valley of the Owls Run is a multi-distance running event held at the Suffolk Running Centre in Bury St Edmunds, Suffolk. The scenic course passes through the village of Ousden, known as the Valley of the Owls, featuring some of England’s oldest roads and beautiful countryside. Runners can choose..

The Gnosall 10K and Family Fun Run take place at the Gnosall Family Sports Club in Staffordshire, offering a scenic, multi-terrain 11.2 km race along the Shropshire Union Canal, farmland, woodland, and a disused railway line. Open to all abilities, the event features chip timing, technical t-shirts,..

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 rolling chalk ridgeways, ancient forts, picturesque vi..

The Nene Valley Trail Run is a friendly and scenic off-road running event held at Castle Farm Campsite in Fotheringhay, near Peterborough. Scheduled for June 13, 2026, it offers two race distances: 10 and 20 miles. The courses traverse picturesque Northamptonshire countryside, including green fields..

The Centurion South Downs Way 50km is a challenging non-stop trail race held within the South Downs National Park in Southern England. Starting near Winchester at Matterley Bowl, the 50km course follows the scenic chalk ridgeway, primarily along the South Downs Way National Trail, and finishes at Qu..

The Dunstable Downs Half Marathon is a challenging 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 rugged chalk ridge trails with stunning ridgeline views, exhilarating descents, and demanding hills. The rout..

The RunThrough Marlow Trail Run, taking place on June 28, 2026, is a scenic off-road event set in the Thames Valley, starting at Marlow Rugby Union Football Club. It offers three distances: Half Marathon (1 lap, 53m elevation), 10K (1 lap, 23m elevation), and 5K (2 laps, 20m elevation), all on trail..