Trail Running calendar near Hertfordshire 2025-2026

We have found 371 Trailruns within 80 miles of Hertfordshire. See below where and when you can find the races.

The Hambledon Hilly is a running event celebrating its 10th edition, set to take place at the picturesque Hambledon Vineyard, England's oldest commercial vineyard. This special occasion features multiple race distances, including 1km, 2km, 5km, 10km, and 20km, catering to various age groups. The eve..

The Centurion Chiltern Wonderland 50 is a challenging 50-mile ultramarathon set in the scenic Chiltern Hills, featuring a single-loop course that includes 5,600 feet of elevation gain. Runners will traverse picturesque villages and historic sites, with the route primarily consisting of trails. The e..

The Cotswold Half Way is a challenging trail running event covering approximately 47 miles along the scenic Cotswold Way National Trail, starting from Chipping Campden and ending in Painswick. Participants will navigate a hilly terrain featuring beautiful viewpoints and picturesque villages. The eve..

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The Yard Trail Races, hosted at Chilton Manor Farm in Hampshire, offers participants two scenic routes: a 10k and a 10-mile trail run. Both routes begin and end on a historic avenue lined with 800-year-old Yew trees, providing stunning views. Runners are welcomed at the finish line by friendly marsh..

The Ouse Valley Way Half & Marathon is an annual running event taking place in Huntingdonshire, featuring a scenic 26.2-mile marathon and a half marathon. The course runs along the picturesque Ouse Valley, offering a mix of grass, gravel, and tarmac paths. For the 2025 edition, the route will start..

The Manuden 10K is an annual running event taking place in Manuden, featuring a 10K, 5K, and 1K race. Scheduled for September 21, 2025, the event promotes community spirit and raises funds for local charities, with proceeds from the 2024 event benefiting Prostate Cancer UK and various village organi..

The Creative Juices 10km is a scenic trail run hosted by the Creative Juices Brewing Company at Woodoaks Farm near Rickmansworth. This event features a beautiful course that is primarily off-road, making it accessible for runners of all abilities. Participants will enjoy a finish at the brewery, whe..

The Clipston Trail Half and Country 5 Miler is a scenic running event set in the picturesque countryside surrounding Clipston. Participants can choose between a challenging half marathon and a shorter 5-mile race, making it suitable for both seasoned runners and those new to trail running. The event..

The Chedworth Roman Trail is a scenic running event taking place in the picturesque Cotswold countryside, featuring both a 10-mile and a 5-mile race. Participants will navigate through Stowell Park and the Coln Valley, with the route including various terrains and a river crossing. Recognized as one..

The Trifarm 10K Autumn Trail Run is part of the Trifarm seasonal trail series, taking place at Trifarm in Boreham. This event features a predominantly off-road course, utilizing public footpaths and bridleways. Participants can expect a unique experience as the run starts at dusk and concludes in th..

The Silent Pool 10km is a guided trail running event set in the picturesque surroundings of Silent Pool, near Guildford, UK. This event is designed for runners of all levels, particularly those new to trail running or those who prefer a group experience. Participants will explore scenic trails, incl..

Thunder Races is an exciting trail running event designed for participants of all skill levels, offering various distances including 10km, 25km, and 50km. Set against the stunning backdrop of Bedfordshire, the races provide a unique opportunity to connect with nature while challenging oneself physic..

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The Dark Downs 50k is an exciting night running event held on the scenic South Downs, featuring both a 50k race and a Half Marathon. Participants will experience the unique atmosphere of running at dusk and into the night, with the rolling hills and runnable trails providing an ideal setting. The ev..

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The Fortitude Ultra - Denbies is an endurance running event held at the picturesque Denbies Wine Estate in Dorking, Surrey. Participants face the challenge of completing 10 laps of varying distances (approximately 3, 4, or 5 miles) within a 10-hour timeframe. Runners can adjust their chosen distance..

The Chiltern 50 Ultra Challenge is a premier endurance event set in the picturesque Chiltern Hills, offering participants the choice of 50 km, 25 km, or a 10 km loop. This challenge caters to all experience levels, allowing individuals to walk, jog, or run at their own pace. The event features a bas..

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The 10k Rauceby Estate Run is an exciting new running event set in the picturesque Rauceby Estate, a 2000-acre property featuring the historic Rauceby Hall. This all-terrain race covers approximately 10 kilometers, incorporating at least 25% private land that has never hosted a race before, along wi..

The North Downs Way Ultra Run is a 30-mile trail event that showcases the stunning landscapes of the North Downs Way, starting and finishing at St Martha's Hill in Guildford, Surrey. This run is designed for both seasoned and first-time ultra runners, offering a guided experience through picturesque..

The Eridge Park 10 Trail Challenge is a celebrated running event returning in 2025 for its 25th anniversary. This challenging 10-mile trail race, known for its stunning scenery and muddy paths, takes place in Eridge Green, Kent. Participants can expect steep climbs and a friendly atmosphere, making..

Steeple Barton Chase is an annual fun run held at Barton Abbey in Oxfordshire, designed to raise funds for the Steeple Barton church. The event features a variety of running options, including a main 10K run, a 5K run for those seeking a shorter challenge, and a 1K Family Fun Run that encourages par..

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..