Trail Running Calendar London 2025-2026

The Orion Harriers Forest Five is a mile race series held at Jubilee Retreat in Chingford, organized by Orion Harriers. Established in 2009 to support the Orion clubhouse fundraising, the event takes place on the first Saturday of June, July, and August each year. The series offers a competitive yet..

The Jubilee Hall Trust's "Run for Your Life" event is set to take place in June 2025 at Hampstead Heath, London. This annual running event features 10K, 5K, and 2K courses, catering to participants of all abilities, including families and beginners. Runners will enjoy scenic trails with stunning vie..

Stately Trails: Forcett Park is a scenic running event held at Forcett Hall, North Yorkshire, featuring 5km and 10km distances on a two-lap course through historic parkland. Runners experience gentle trails across pasture fields, farm tracks, and woodland, passing ancient Iron Age fortifications, a..

The John Clarke Memorial Race will take place in London on Friday 20 June 2025.

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 iconic landmarks such as Eltham Palace, Wimbledon Common, and Richmond Park, alongside hidden trails, park..

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 km 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 transport, dis..

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 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 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 running event set in the picturesque grounds of Aske Hall, a Georgian country house located near Richmond, North Yorkshire. Participants can choose between a 5km or 10km race, traversing beautiful trails that include pasture fields, farm tracks, and woodlands. The course is..

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

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, about 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 offers three race distances: a 10km out-and-back route to Kew Gardens Car Park, a half marathon featuring a 13.1-mile loop to opposite Barnes Sports Club, and a marathon..

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 held in England along the scenic Thames Towpath, running from Putney Bridge in London to Henley-on-Thames. Participants can walk, jog, or run distances ranging from 10 km to 100 km, including options for 100 km continuous, 2-day daylight 1..