Trail Running calendar near Grantchester 2025-2026

The Centaur 100 Mile Ultra, organized by Phoenix Running, is a unique endurance event designed for both seasoned ultra-runners and first-timers. Set in a scenic wine estate, participants have up to 30 hours to complete the 100-mile challenge on a flat, one-mile loop. The event fosters a supportive a..

The Three Shires Way Ultra & Marathon is a challenging running event set in the picturesque rural landscapes of Buckinghamshire, Bedfordshire, and Northamptonshire. Participants can choose between a 50-mile ultra and a marathon distance, both of which follow well-marked bridleways. The event is desi..

P24 - The Longest Attended Day is an endurance running event organized by Phoenix Running, taking place at Denbies Wine Estate in Dorking. Participants challenge themselves to run 1 mile on the hour, every hour, for 24 consecutive hours. The event features a flat, off-road trail and offers amenities..

The Castle Bytham 5k Chase is a fun trail run that takes place during the Castle Bytham Midsummer Festival, a popular two-day event in Lincolnshire. This inclusive race welcomes participants of all ages and abilities, encouraging both runners and walkers to join in. The festival features a variety o..

Beyond London is a trail and ultra running event that invites participants to explore hidden trails in the capital. Offering two distances—25km and 55km—runners can experience iconic sights like Eltham Palace and Richmond Park while navigating the scenic Capital Ring footpath. The event is designed ..

The Triffic Trail is an annual running event held in the scenic Trent Country Park, Enfield, London. It features a variety of courses, including a 10 km senior race, a 4.5 km junior race for participants under 18, and a 4.5 km fun run for those under 12. The event caters to all levels of runners, fr..

The Midsummer Murder event offers a thrilling trail running experience in the picturesque Hambleden Valley, located between Henley on Thames and Marlow. Participants can choose between a challenging 10-mile course and a half marathon, with the latter measuring 14.3 miles. The routes feature stunning..

The Dunstable Downs Half Marathon is a scenic trail running event set in the picturesque National Trust's Dunstable Downs estate. Scheduled for June 22, 2025, this challenging race features an entirely off-road route that spans 21.2 kilometers with an elevation gain of over 450 meters. Participants ..

The Chelmsford Brew Co Summer 10k Trail Run is a fun, non-competitive event scheduled for June 26, 2025. Participants will navigate a GPX/Strava route, with a checkpoint at the brewery where they can enjoy a drink and relax for up to 20 minutes. Entry includes a beverage at the brewery checkpoint an..

The Colworth Marathon Challenge is a unique running event held in the scenic Colworth Estate, North Bedfordshire, UK. Participants can choose to enter one, two, or all three races, which together total 26.2 miles. The event features a multi-terrain 5-mile race, an 8.1-mile cross-country trail, and a..

The Zigzag Cock-A-Doodle Dawdle is a running event returning for its second year at Hyde Hall Farm in Hertfordshire. Participants can choose from various distances, including 5k, 10k, Half Marathon, Full Marathon, and Ultra Marathon. The event features a scenic trail course that starts at the farm's..

The Full Essex Way Ultra is an 82-mile ultra-marathon that takes participants from Epping tube station in London to the historic port of Harwich. Scheduled for July 4-5, 2025, the event features a mixed terrain of trails, footpaths, tracks, and roads, with a total elevation gain of 3,469 feet. Runne..

The ATW Odyssey 12hr Run is an exciting multi-terrain running event held in St Neots, designed for participants of all abilities. This unique experience focuses on self-discovery as runners tackle physical and psychological challenges over a scenic 7km loop. Participants can compete solo, in pairs, ..

Fen Gallop 2025 is a running event taking place in Willingham, Cambridgeshire, featuring a 10km race and a shorter 4-mile option along scenic flat country roads, footpaths, and bridleways. The event also includes a kids' run organized by the Willingham School Association. Registration opens early in..

The Bewl 15 Mile & 5 Mile event, organized by Wadhurst Runners, takes place around the scenic Bewl Water in Sussex. Participants can choose between a challenging 15-mile or a 5-mile race, both offering stunning views and a community spirit. The event supports the KSS Air Ambulance Service, with proc..

The Chiltern Ridge Half Marathon is a challenging trail running event set along The Ridgeway National Trail in Buckinghamshire. Scheduled for July 6, 2025, this race features a scenic route starting and finishing in Wendover, taking participants through the picturesque Whiteleaf Hill Nature Reserve...

The Highwayman Trail Marathon is a unique narrative trail race set for July 6, 2025, in the picturesque villages of Thaxted, Great Sampford, and Hempstead, linked to the early life of Dick Turpin. The course is predominantly off-road, covering diverse terrains, and participants will navigate using w..

The Bishop's Stortford Mitre 10k, 5k, and 1K is a community-focused running event organized by The Bishop's Stortford High School, taking place on July 6, 2025. The event features professionally measured 10k and 5k routes through scenic East Hertfordshire villages, designed for runners of all ages a..

St Martha's 10km is a guided trail running event set in the picturesque Surrey Hills, starting near Guildford. Participants will experience a scenic route that includes a climb up St Martha's Hill, offering stunning panoramic views, and a descent through the historic Pilgrims Way and Tillingbourne V..

The Swan Challenge is a unique trail running event held at Coombe Abbey Park, offering participants the flexibility to run as many 5k laps as they wish within a 6-hour time limit. This event caters to all abilities, allowing runners to set their own distance goals, from a casual 5k to over 50 miles...