Trail Running calendar near London 2025-2026

The Thames Meander Autumn is a scenic riverside running event held in Richmond, starting from the Petersham & Ham Sea Scouts HQ. It features three flat, fast, and well-marked out-and-back trail routes along the Thames Path: a 10km, a half marathon (13.1 miles), and a marathon (two half marathon loop..

The Rushmoor Wellesley 10k is a community-organized running event held near Aldershot, Hampshire, starting and finishing at the Military Athletics Stadium. The race features a very flat course primarily along Wellesley Woodlands footpaths and the Basingstoke Canal towpaths, offering scenic views ide..

The Thompson Millennium Green 10K and 5K are multi-terrain running events held in Thompson, Norfolk, featuring scenic routes through farmland, lanes, and bridleways around the Millennium Green. The 10K course is fairly flat, ideal for personal bests, starting and finishing on the Green, passing land..

The HAVOC Twilight Series 2025 No.3 in Brentwood is a midweek street orienteering event featuring a spiral score course through local streets, parks, and woods. Participants choose between two time limits: a 60-minute long course or a 40-minute short course, aiming to visit as many controls as possi..

The RunThrough Trails Beat Box Hill event, held on October 11, 2025, takes place at the iconic Box Hill in Surrey, UK. It offers two trail race distances: a challenging 50k with 1364m elevation and a 21k with 610m elevation, both featuring scenic routes on natural terrain. The event is suitable for..

The Kent Downs 50 Ultra Challenge is a 50km endurance event held near Maidstone, Kent, known as the "Garden of England." Participants can walk, jog, or run the main 50km loop, which follows the North Downs Way, passing Blue Bell Hill, Aylesford, the River Medway, Mote Park (halfway point with a picn..

The Cowdray Autumn Trail Run, held at the scenic Cowdray Estate in Midhurst, offers three challenging distances: 5km, 10km, and 10 miles. The courses feature undulating terrain with steep uphill and downhill sections, traversing bridleways, footpaths, the Serpent Trail, and Sussex Diamond Way, inclu..

The Run the Wild Half Marathon - Autumn Edition is a 13-mile (21.1 km) trail running event set in the scenic Chiltern Hills, just 40 minutes northwest of London. Featuring rolling chalk hills and woodland paths with an ascent of around 300 meters, the course offers a welcoming atmosphere for all abi..

The Cowdray Estate Trail Run Series, organized by Raw Energy Pursuits, offers a variety of trail running events set in the scenic Cowdray Estate in West Sussex. The series includes multiple distances such as 5km, 10km, and 10-mile runs, held across different seasons—spring, summer, autumn, and winte..

The ATW Holdenby House Trail & Canicross event takes place at the historic Holdenby Estate, a 2,000-acre site in Northamptonshire. Participants can choose from various distances, including a 5k, 10k, and Half Marathon, with the course offering scenic views of the estate and its gardens. A special 5k..

The Marlow Donkey is a challenging walking and running event organized by Thames Valley LDWA, held in the Chiltern Hills near Marlow, Buckinghamshire. Participants can choose between two routes of 16 or 25 miles, both featuring a figure-eight course centered on Lane End. The event welcomes walkers a..

The Frieth Hilly 5km & 10km is a challenging mixed-terrain running event held in the scenic Chiltern Hills near Frieth, between Marlow and Henley-on-Thames, about 35 miles from central London. The race features winding woodland paths and country roads, offering stunning views throughout the course...

The Southend Pier Marathon is a unique running event held in Southend On Sea, UK, featuring a full marathon distance of 26.2 miles entirely on the world's longest pleasure pier, which stretches 1.34 miles over the sea. This event offers runners the rare experience of racing over water on a historic..

The North Chilterns 50K is an ultra marathon trail race held in the scenic countryside east of Luton, UK. Starting and finishing at the picturesque Putteridge Bury Estate, the 50-kilometer course features ridgeline trails with stunning views of Warden Hill, Barton, and Pegsdon Hills. The route is fu..

The Titsey Trail 10K is a scenic trail running event held in Oxted Woodlands, Surrey, offering a single-lap 10-kilometer course through Limpsfield Common and the High Chart of Surrey and Kent. The route is mostly off-road, featuring forest tracks, footpaths, and bridleways with gentle slopes but no..

The Ridgeway Run, organized by Tring Running Club, is a challenging 15-kilometre (9.3 miles) trail race set in the scenic Chiltern Hills near Tring, UK. The course starts on the outskirts of Tring, ascending through the Ashridge Estate, passing landmarks like the Bridgewater Monument, and includes s..

Aliens V's Trail Runners Daylight Trail is a unique running event held near Rendlesham Forest, a popular spot for runners, mountain bikers, and UFO enthusiasts. Scheduled for October 12, 2025, the event offers both a full marathon and a half marathon, featuring narrative trails without traditional m..

The Buckingham 10K is a scenic running event held in Buckingham Town Centre, featuring a 10-kilometer multi-terrain route. The course starts in the town center and passes through Stowe Avenue, the Stowe National Trust Gardens, and surrounding farmland, offering an undulating profile through both urb..

The South Downs Way Ultra Run is a 30-mile trail running event starting and finishing at Harting Down in West Sussex. The course showcases some of the best sections of the South Downs Way and nearby areas, including Beacon Hill, Cocking Down, and the ancient woodlands of Kingley Vale, known for its..

The Gatliff Marathon is an annual challenge event held in the Kent, Surrey, and Sussex countryside, starting at Edenbridge Cricket Club in Kent, UK. Participants can choose to walk, jog, or run either 25km or 50km along mostly footpaths and tracks. The course changes each year, with route details an..