Trail Running calendar near Chelmsford 2025-2026

The Three Shires Way Ultra & Marathon is a point-to-point trail running event held in the rural landscapes and ancient woodlands of Buckinghamshire, Bedfordshire, and Northamptonshire. It features a 50-mile ultra and a marathon distance, both suitable for beginners and experienced runners. The ultra..

P24 - The Longest Attended Day is a unique endurance running event held at Denbies Wine Estate in Dorking, Surrey. Participants run one mile every hour on the hour for 24 consecutive hours, covering a total of 24 miles on a mostly flat off-road trail through the scenic wine estate. The event takes p..

The Woodland Trail is a charity running and walking event held at Berkhamsted Castle, Hertfordshire. Participants can choose between 5- or 10-mile routes that wind through beautiful woodland and countryside, featuring fields, pathways, and some challenging, undulating terrain. The event offers a non..

The Hawkhurst 10K & 5K is a community-focused running event held in the heart of Kent at The Moor, Hawkhurst. Featuring 10k and 5k distances alongside a free junior run, the race offers a multi-terrain course that includes fields, trails, and roads with undulating terrain. The event is family-friend..

The Alfriston 7km Trail Race is a scenic trail running event held at The Old Chapel Centre in Alfriston, UK. The race features a picturesque 7km loop showcasing local landmarks and offering superb views. The course is fully marked and marshalled, with a limit of 50 participants to maintain an intima..

Midsummer Murder is a challenging trail running event held in the stunning Hambleden Valley near Henley on Thames. Participants can choose between a 10-mile (10.4 miles) or a half marathon (14.3 miles) course, both featuring predominantly off-road terrain with significant elevation gains—426m for th..

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 Dunstable Downs Half Marathon is a challenging off-road trail race held at the National Trust's Dunstable Downs estate in the Chiltern Hills, UK. Covering 21.2 km with over 450 meters of elevation, the course features rugged chalk ridge trails, ridgeline views, steep climbs, exhilarating descent..

The Black Notley Trails is a fundraising trail running and walking event held in the village of Black Notley. Participants can choose between a 3.1-mile or 6.2-mile self-navigation trail, using a written route description provided on the day, with no course markings or marshals. The event supports E..

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 Out Of The Blue Battle 10k & 5k is a twilight running event held at Ashburnham Place, a stunning 220-acre estate in Battle, East Sussex. Celebrating its 10th anniversary, the race offers 10k and 5k distances, with the 10k consisting of two laps and the 5k one lap, plus a popular Junior Run. The..

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 Colworth Marathon Challenge is a unique running event held at the scenic Colworth Estate in North Bedfordshire, UK. It features three races over three consecutive days: a 5-mile multi-terrain run with family entertainment, an 8.1-mile cross-country trail race, and a 13.1-mile half marathon, coll..

Run The Seasons at Cowdray is a scenic running event held on the Cowdray Estate in Midhurst, set above the world-class polo fields with views of the Cowdray Ruins and the South Downs National Park. Participants can choose from 5km or 10km distances, including dog-friendly canicross options. The cour..

The Cowdray Estate Trail Run Series, organized by Raw Energy Pursuits, offers a variety of trail running events set within the scenic Cowdray Estate in West Sussex. The series includes multiple distances such as 5km, 10km, and 10-mile runs, with seasonal events held in spring, summer, autumn, and wi..

The Unlimited Trail Wissant will take place in Wissant on Saturday 28 June 2025. You can run between 21 and 63 kilometers.

The Jennett's Park urban orienteering event, hosted by Berkshire Orienteers (BKO) in Bracknell, offers three courses: Long (5.8 km straight line, 8.2 km optimal), Medium (4 km straight line, 5.4 km optimal), and Short (2.4 km straight line, 2.5 km optimal). Suitable for all abilities, the event emph..

The Zigzag Cock-A-Doodle Dawdle is a trail running event held at the exclusive Hyde Hall Farm in Hertfordshire (SG9 0RU). Returning for its second year, the race offers multiple distance options including 5k, 10k, half marathon, full marathon, and ultra marathon. The course features a mix of tarmac..

The Maverick Adidas Terrex X-Series South Downs is a challenging trail running event held in Hampshire, UK. It offers multiple race distances including 51K, 42K, 21.5K, and 9K, catering to a range of abilities. The event is part of the tough and scenic X Series, known for its brutal yet stunning cou..

Royston In Blue is a 5-kilometre fun run and walk held in Royston, Hertfordshire, on a two-lap trail course over Royston Heath. The undulating route offers a scenic and challenging experience for participants. The event supports the Teenage Cancer Trust, combining fitness with fundraising.Facilities..