Trail Running Calendar South East (England) 2025-2026

The Valley Park Tour of the Woods is a unique 10 km trail race set in the picturesque woodlands of Chandler's Ford, Hampshire. This event, organized by Chandler's Ford Swifts Running Club, features a mixed terrain course divided into five stages, allowing participants to rest between segments withou..

The Surrey Slog, also known as the Holmbury Hill Challenge, is a challenging trail half marathon set in the picturesque Surrey Hills. Scheduled for July 20, 2025, the event features a hilly, multi-loop cross-country course primarily on tracks around Holmbury Hill. Participants can choose between a f..

BigHeat Trails (FIRE) is the third event in the Classic Element Trail Series, celebrating the element of Fire. This trail running event features two challenging single-lap courses through the scenic landscapes of Thursley and Hankley Commons, with options for a 16-mile run or a marathon distance. Pa..

The Maverick X Series East Sussex 2025 is a trail running event taking place at Stanmer Park, featuring three scenic routes of varying distances: 55 km (Ultra), 41 km (Long), 21 km (Middle), and 14 km (Short). Participants will experience the beautiful landscapes of the South Downs Way, including th..

The Wendover Woods 10K is an exciting trail running event taking place in the scenic Wendover Woods, designed to raise funds for the Chilterns Neuro Centre, which supports individuals affected by multiple sclerosis, Parkinson’s, and stroke. Participants can choose between a challenging 10K or a 5K r..

The Guided 10K Pub Run will take place in New Alresford on Sunday 3 August 2025. You can run 10 kilometers.

The Sussex Loops is a challenging running and walking event taking place in East Sussex, featuring courses of 12, 18, 25, or 31 miles. Participants will navigate three loops starting from Forest Row Village Hall, exploring the scenic Ashdown Forest and surrounding countryside. The event allows a max..

The MTC Oxford Ultra is a challenging 49-mile ultra marathon that takes participants on a scenic route from Oxford to Henley-on-Thames. The race features checkpoints providing food and hydration, ensuring runners are supported throughout their journey. All finishers receive a bespoke medal and can c..

The MTC Windsor Ultra is a challenging 47-mile ultra marathon that takes participants on a scenic point-to-point route from Henley-on-Thames to Kingston upon Thames. Runners will experience picturesque views along the River Thames, passing landmarks such as Windsor Castle and various locks. The even..

The Centurion North Downs Way 100 is a challenging 100-mile trail run that takes place along the scenic North Downs Way, stretching from Farnham in Surrey to Ashford in Kent. Participants will encounter a total elevation gain of 11,000 feet, navigating through picturesque English countryside, includ..

The Mount Ephraim 10K is a popular running event set in the picturesque Mount Ephraim Gardens in Kent. This annual race features a scenic 10K course along quiet country lanes, attracting both seasoned club runners and casual participants. In addition to the main race, there is a Junior Run, allowing..

The Henfield Half Marathon, organized in conjunction with Henfield Joggers, is an off-road running event featuring a scenic course that runs along a riverbank and a disused railway, incorporating flint paths and stiles. The event takes place at the Henfield Leisure Centre, providing facilities such..

The Windsor & Eton 10km is a scenic trail run starting from the Windsor & Eton Brewery, located in the historic town of Windsor, near the River Thames. The course is designed to be flat and accessible for runners of all abilities, featuring a mix of towpaths, footpaths, and short road sections. Part..

The Big Pilgrimage is a 15-mile point-to-point mixed terrain run that takes participants along the newly discovered Pilgrim Trail, 'The Old Way', from Southampton to Canterbury. The event starts at Mayflower Park and concludes at the historic Titchfield Abbey, featuring scenic coastal and countrysid..

The Woldingham Marathon is a running event featuring both a full marathon (26.2 miles) and a half marathon (13.1 miles). Set in the scenic surroundings of Woldingham School, the race offers participants an out-and-back course that showcases beautiful views of Kent and Surrey. Runners will navigate t..

The Henley River Half Marathon, 10k & Juniors is a scenic running event taking place on August 30, 2025, in Henley-on-Thames, UK. Participants can choose from a half marathon, a 10k race, or junior races, all set against the picturesque backdrop of the River Thames. The event features accurately mar..

The Southampton Running Festival, organized by RunThrough UK, will take place on August 31, 2025, in the scenic Southampton Common. This event features various race distances, including a 5K, 10K, and Half Marathon, along with junior races. Participants can expect a picturesque route that showcases..

The Andover Trail Marathon is a popular running event in North Hampshire, featuring both a full marathon and a half marathon. Participants can expect challenging terrain with significant elevation changes, including climbs and fast downhill sections that showcase the region's beautiful meadows and v..

The South Coast Challenge is a premier endurance event taking place on September 6-7, 2025, featuring stunning routes through the South Downs National Park. Participants can choose from various distances, including 100 km, 50 km, 25 km, or 10 km, accommodating all experience levels. The challenge be..

The Shere 42k, 21k & 10k Multi Terrain Event is a popular trail running competition set in the picturesque Surrey Hills, recognized as an Area of Outstanding Natural Beauty. Participants can choose from three distances: a scenic 10k, a challenging 21k, or a full 42k marathon, each offering unique ro..