Trail Running calendar near Chelmsford 2024-2025

We have found 280 Trailruns within 80 miles of Chelmsford. See below where and when you can find the races.

The Midsummer Murder event offers a thrilling trail running experience in the picturesque Hambleden Valley, nestled 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. Both routes feature stunnin..

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 covers a distance of 21.2 kilometers with an elevation gain of over 450 meters. Participants will experience a fully of..

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The Colworth Marathon Challenge is a unique running event held in the picturesque 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 5-mile multi-terrain race, an 8.1-mile cross-country race, a..

The Cock-a-doodle Dawdle is a running event returning for its second year at the scenic Hyde Hall Farm in Hertfordshire. Participants can choose from various distances, including 10k, Half Marathon, Full Marathon, and Ultra Marathon, making it suitable for runners of all levels. The event features a..

July 2025

The Devil's Punchbowl 10k is a guided trail running event set in the scenic Devil's Punchbowl, Surrey. This 10km run is designed for participants of all skill levels, offering a fun yet challenging experience along beautiful trails and hills. Runners can enjoy breathtaking views while being guided b..

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. The event showcases the scenic Essex Way trail, featuring a mix of terrain including trails, footpaths, tracks, and roads, with a total elevation gain of ..

The Serpent Trail is a scenic running event set in the stunning South Downs National Park, offering participants a choice of five distances: 100k, 75k, 50k, 20k, and 10k. Runners will traverse through unique habitats, including ancient woodlands and lowland heath, making it a remarkable experience f..

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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 combines physical and psychological challenges as runners navigate scenic footpaths over a 7km lap course. Participants can compete solo, in pairs,..

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...

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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 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 levels..

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..

Race to the Stones is the UK's largest ultramarathon, taking place along Britain’s oldest footpath, the Ridgeway. Scheduled for July 12-13, 2025, participants can choose from various courses, including a 100km non-stop option, a 100km split over two days, or 50km challenges on each day. The event st..

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The North Downs 50 Ultra Challenge, taking place on July 12, 2025, offers participants a scenic 50 km loop through the Surrey Hills, starting and finishing at the Guildford basecamp. Alongside the main event, shorter options of 25 km and 10 km are available, catering to various fitness levels. The c..

The Hughenden Manor 10K is a popular trail running event set in the scenic Hughenden Valley, near High Wycombe. Scheduled for July 19, 2025, this challenging race features a hilly 10K course that winds through beautiful woodland and rural trails, making it suitable for runners of all fitness levels...

The Humanity Direct Chiltern Challenge is a one-day ultra marathon event set in the picturesque Chiltern Hills, designed for both novice and experienced runners. Participants can choose between a 50km ultra marathon or a 25km half ultra, with the opportunity to run for free by fundraising for Humani..

The Boudicca Way 50km Ultra is a scenic ultramarathon taking place along the historic Boudicca Way Long Distance Path, from Diss to Norwich. Scheduled for July 19, 2025, this event welcomes both runners and walkers, with a time limit of 10 hours to complete the course. Participants will traverse pic..

The Maverick X Series Chilterns 2025 is a trail running event set in the picturesque Stonor Park, featuring four distinct routes: Ultra (52 km), Long (42 km), Middle (22 km), and Short (12 km). Participants will navigate through the stunning Chilterns Area of Outstanding Natural Beauty, encountering..

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The Hughenden Manor Half Marathon is a scenic trail running event set in the picturesque Hughenden Valley, featuring a challenging 21.1 km course that winds through the woodlands surrounding the National Trust's Hughenden Manor. Scheduled for July 19, 2025, this race offers participants a chance to ..

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