Trail Running calendar near Marlow 2025-2026

The Cold Norton Charity Summer Half Marathon Trail Event, scheduled for August 10, 2025, offers participants a choice between a 10km and a 13.1-mile route through the scenic countryside of Cold Norton, Essex. This charity event supports Farleigh Hospice, providing essential care for those with life-..

The Ramsbury Gold 10k is a scenic trail running event held at the Ramsbury Brewery on the Ramsbury Estate in Wiltshire. The 10km course features approximately 70% off-road terrain, including local trails, woodland, and footpaths, with an elevation gain of 165 meters. Suitable for all abilities, the..

Hart 4 is a unique 4-hour trail relay held at Minley Manor, Hampshire, where teams of four compete on a 4 km off-road course. The event features an undulating route through woods and grasslands, combining hills and flat sections to challenge and engage runners. Teams aim to complete as many laps as..

The Huffer Puffer Trail Race is a self-navigated trail running event held near Littley Green, Chelmsford. Covering approximately 6 miles, the course traverses trails, tracks, and country lanes. Participants receive a written route description on race day, as the course is unmarked and without marsha..

The Foxton Hound Ultra, held near Market Harborough, offers two challenging trail races of 100k and 50k distances through the scenic countryside of Northamptonshire and Leicestershire. The routes follow the Harborough Round long-distance footpath, passing through historic villages like Houghton on t..

The Two Tunnels Races, scheduled for August 17, 2025, in Bath, UK, offer a unique running experience featuring the longest underground sections for each race distance in the UK. Participants can choose from various events, including an ultra marathon, marathon, half marathons, 10km, 5km, and family-..

The Windsor & Eton 10km is a scenic multi-terrain trail run held in the historic town of Windsor, starting and finishing near the Windsor & Eton Brewery by the River Thames. The pancake-flat course covers 10 kilometers, featuring towpaths, footpaths, and short road sections through areas including t..

The Big Pilgrimage is an exciting mixed terrain running event featuring a 15-mile course and a marathon, set to take place along the historic 'Old Way' Pilgrim Trail from Southampton to Canterbury. Participants will enjoy scenic views as they traverse beautiful coastal and countryside paths, with no..

The Gosfield Backyard Ultra is a unique endurance running event held at Gosfield School in Essex, UK. Participants run a 4.167-mile (6,706 meters) loop every hour on the hour, continuing until only one runner remains. The course is fully marked and set within the scenic grounds of the school.The eve..

The Summer Green Man Ultra (GMU) is a challenging ultra marathon held near Bristol, UK, featuring two race distances: 45 miles and 30 miles. Both races follow the same course clockwise on the Community Forest Path, with the 45-mile race starting and finishing at Ashton Park School, and the 30-mile r..

The Woldingham Marathon is a UK Athletics-affiliated running event held at Woldingham School near Caterham, Surrey. It offers both a full marathon (26.2 miles) and a half marathon (13.1 miles) on an out-and-back course featuring a single 13.1-mile loop. The route showcases scenic countryside, includ..

Run Winchcombe is a family-friendly running event held at the historic Sudeley Castle in Winchcombe. It offers three race distances: a 1k for children under 11, a 5k for ages 11 and over, and a 10k for participants 16 and older. The courses feature scenic routes around the castle grounds, including..

The Pershore Plum 10k is a chip-timed, multi-terrain flat 10-kilometer race held in Pershore, Worcestershire. Starting at Pershore Leisure Centre, the course runs through Pershore High Street, crosses the river, and passes through the surrounding countryside near Wick before finishing in Abbey Park..

The Chelmsford Brew Co Summer August Ale Trail 10K is a fun, charity-focused running event held at Brewery Fields, Great Baddow, Chelmsford. Scheduled for August 28, 2025, the 10K course is a GPX/Strava route with a narrative guide, emphasizing enjoyment over competition. Participants receive a drin..

The London Backyard Ultra is a unique endurance running event held at Frylands Wood Scout Outdoor Centre in Croydon, London. Participants run a four-mile loop every hour on the hour, continuing until only one runner remains, testing their true limits. The event offers a challenging yet supportive at..

The Mendip Marauder is a challenging ultra running event held in Somerset, England, featuring two distances: a 30-mile and a 50-mile race. The 30-miler covers the entire West Mendip Way, while the 50-miler includes the East Mendip Way before joining the 30-mile route. The course is notably hilly, wi..

The Henley River Half Marathon, 10k & Juniors event takes place in Henley-on-Thames, UK, on August 30, 2025. This scenic trail run is suitable for both new and experienced runners, featuring routes around Henley-on-Thames with beautiful views and a fast course ideal for personal bests. The race star..

The Southampton Running Festival August 2025, organized by RunThrough UK, takes place on Sunday, August 31, 2025, at Southampton Common, a scenic and ecologically significant green space in the city center. The event offers multiple race distances including 5K, 10K, half marathon, and a junior race,..

The 2nd Galloping Grind 10k Trail Run takes place in Boreham, Essex, offering a challenging 10-kilometer course predominantly run anti-clockwise through scenic orchards and trails. This dusk race encourages participants to wear high-visibility or reflective clothing for safety. Limited onsite parkin..

The Ickworth Sunset Chase is a scenic running event held at Ickworth Park, a National Trust estate near Bury St Edmunds, Suffolk. Offering 5K and 10K distances, the race starts at sunset, guiding runners through landscaped parkland, meadows, forests, and rolling countryside. The course features mult..