Trail Running Calendar London 2025-2026

Beyond Trails London is a trail running event offering two distances: a 25km trail and a 55km ultra, both taking place in Greater London. The routes follow the Capital Ring footpath, showcasing hidden trails, parks, woodlands, and iconic landmarks such as Eltham Palace, Wimbledon Common, and Richmon..

The Triffic Trail is an annual running event held in the scenic Trent Country Park, Enfield, London. The race features a 10 km senior trail course that includes woodland trails, grassy fields, hills, and some fast tarmac sections, all within the park's picturesque grounds. It welcomes a wide range o..

The Nonsuch Park Summer Series 2025 is the second of four evening orienteering events organized by MVOC, held in Cheam's Nonsuch Park. It offers a welcoming atmosphere for runners of all abilities, featuring a 60-minute score course using Waikato scoring rules for experienced participants and a simp..

The Ealing Eagles Trail 10K is a running event held at Brent Lodge Park in London, offering a 10-kilometer trail race along with a junior 1-mile race. The course details are available on the organizer's website, and all finishers receive a memento. The event emphasizes easy access via public transpo..

The Spitfire Scramble is London's only 24-hour running event held at Hornchurch Country Park. Participants can run solo or in teams of two to eight, tackling a 5.75-mile multi-terrain lap repeatedly over 24 hours. The race tests endurance, speed, teamwork, and night running skills, as only one runne..

The Orion Harriers Forest Five is a mile race series held at Jubilee Retreat, initiated in 2009 to support the Orion Harriers clubhouse. The 2025 series includes three Saturday morning races on June 7th, July 5th, and August 2nd. Participants can compete individually or in age categories, with troph..

The Horton Country Park Summer Series 2025 is the third event in a four-part summer evening orienteering series organized by MVOC, held at Horton Country Park near Chessington, UK. It offers a welcoming atmosphere for runners of all abilities, featuring a 60-minute score course with an odds and even..

Stately Trails: Aske is a scenic running event held at Aske Hall, a Georgian country house near Richmond, North Yorkshire. Participants can choose between 5km and 10km trail races, or a 5km walk, all set within the exclusive estate's beautiful grounds featuring parkland, woodland, pasture fields, an..

The Kennet & Avon Canal 145 Mile Race (KACR) is a challenging non-stop ultramarathon held in the UK, running from Little Venice, London, to Bristol. Covering 145 miles, the route follows canal, river, and railway towpaths, including the Grand Union Canal, Jubilee River, River Thames, Kennet & Avon C..

The Round the Rock will take place in Morden on Saturday 2 August 2025. You can run 46 miles.

The Orion Harriers Forest Five Series is a running event held at Jubilee Retreat, featuring a 5-mile race through forest terrain. Established in 2009 to support the Orion Harriers clubhouse, the 2025 series includes three races on Saturday mornings in June, July, and August. The third race also serv..

The Vanguard Way Marathon is a scenic running event held near Croydon, starting from East Croydon Station, just 20 minutes from central London. It offers both a full marathon (26.2 miles) and a half marathon (13.1 miles), following part of the Vanguard Way National Trail, a 66-mile route stretching..

The Ivybridge 3 Tops is a challenging fell running event held as part of the Dartmoor Fell Series in South West England, organized by Erme Valley Harriers. The race covers approximately 10 kilometers with 450 meters of climbing, offering stunning views over the South Hams. The course starts near the..

The Thames Meander Summer is a scenic riverside running event held in Richmond, starting at the Petersham & Ham Sea Scouts HQ. It features three fast, flat, and well-marked out-and-back trail routes along the Thames Path: a 10km (one 6.25-mile lap), a half marathon (two 6.55-mile laps), and a marath..

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 Thames Path Ultra Challenge is a premier endurance event in England, following the scenic Thames Tow Path from Putney Bridge in London to Henley-on-Thames. Participants can walk, jog, or run distances ranging from 10 km to a full 100 km ultra, with options for 75 km, 50 km, and 25 km as well. Th..

The Run London Epping Forest Trail 10k is a popular running event scheduled for September 14, 2025, in the scenic Epping Forest, Chingford. Participants will complete a 10k course consisting of two laps through the forest, known for its rich biodiversity and beautiful landscapes. The race is designe..

The Epic Epping Forest Ultra, organized by Orion Harriers, is a challenging trail running event held in Epping Forest, London. The 2025 edition features a 50-mile ultra race consisting of 10 laps of a 5-mile forest trail loop with 3,680 feet of elevation gain. The course is marked with sawdust and f..

The Richmond Park Half Marathon is a scenic trail run covering a half marathon distance entirely within Richmond Park. The event begins at Sheen Gate, where participants will navigate through picturesque routes, including views of lakes and wildlife. Runners will traverse various park gates, includi..

The London Epping Forest 50 Km will take place in London on Saturday 4 October 2025. You can run 50 kilometers.