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 Ridgeway Challenge is an 86-mile (139 km) point-to-point trail running race that traverses the entire length of The Ridgeway National Trail, from Ivinghoe Beacon in Hertfordshire to the Avebury Stones in Wiltshire. This historic route has been in use for over 5,000 years. Participants have a tim..

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June 2025

The Circuit du Sore Legs is an annual running event held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. This year marks its fifth edition, featuring various distances including 5k, 10k, half marathon, full marathon, and a 50k ultra, all run on a 400-meter athletics track. Participa..

The John Clarke Memorial Race will take place in London on Sunday 1 June 2025.

The Surrey Hills Half Marathon is a scenic trail running event that takes participants through the stunning landscapes of the Surrey Hills, starting and finishing in Guildford. This 13-mile guided run is ideal for those new to trail running or those who prefer a supportive group environment. Runners..

The Magna Carta Summer event features a series of races set in the picturesque Runnymede area of Surrey, near the historic site where the Magna Carta was signed in 1215. Participants can choose from a 10KM, Half Marathon, or Marathon, all starting at the Wraysbury Skiff & Punting Club along the scen..

The Sundowner Marathon is an exciting trail running event scheduled for June 7, 2025. Participants will experience a unique course that includes coastal saltmarsh, canal towpaths, vineyards, and forests, running into the sunset. The marathon features two loops, allowing runners to access drop bags a..

The Suffolk Back Yard Ultra is a highly competitive running event held at Knettishall Heath Nature Reserve. Participants run a distance of 4.167 miles every hour on the hour, continuing until only one runner remains who can complete the loop within the one-hour time limit. The event features chip ti..

The Valley of the Owls Run, hosted by Zig Zag Running, takes place in the picturesque village of Ousden, Suffolk, known for its historic roads and beautiful countryside. Participants can choose from various distances, including 5k, 10k, Half Marathon, Full Marathon, and Ultra, with a focus on a soci..

The Tewinbury Trail 10K is an exciting trail running event set in the picturesque Tewinbury Farm & Hotel, located just north of Welwyn in Hertfordshire. Scheduled for June 8, 2025, this 10K race features a scenic route that combines various terrains, including single track forest paths and open trac..

The Nene Valley Trail Run features friendly and scenic 10 and 20-mile trail races set in the picturesque Northamptonshire countryside. Participants will enjoy easy tracks, ancient woodlands, and charming villages, starting from Fotheringhay. The event promotes eco-friendliness, encouraging runners t..

The Hampshire Hoppit is an exciting off-road trail running event set in the scenic North Hampshire Downs. Participants can choose from three distances: a full marathon (26.2 miles), a half marathon (13.1 miles), or a 10k race. The routes feature well-marked paths and include sections of the renowned..

Run Sandringham 10K & 5K is an exciting running event set to take place at the picturesque Sandringham Estate on 28th September 2025. Organized by Good Running Events, this race welcomes participants of all ages and abilities to enjoy a scenic route through the Royal Estate, raising funds for charit..

The Robertsbridge Midsummer 10K & 5K is a vibrant community running event set to take place in 2025 in the picturesque village of Robertsbridge, East Sussex. Organized by the Robertsbridge Bonfire Society, this event features races for all ages, including a Junior race, fostering a spirit of family ..

Race to the King is an exciting ultramarathon event taking place on June 21, 2025, starting from West Dean Gardens. Participants can choose between a challenging 100km route, which consists of two loops— a flat Coastal loop around Chichester Harbour and an undulating Castle loop along the South Down..

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

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 Denbies Marathon & Half Marathon, organized by Phoenix Running, will take place on June 21-22, 2025, at the scenic Denbies Wine Estate in Dorking. This unique event offers participants up to 30 hours to complete their race, with flexible start times available from Saturday morning to late Sunday..

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

The Three Shires Way Ultra & Marathon is a scenic running event featuring a 50-mile ultra and a marathon distance race, set in the picturesque rural landscapes and ancient woodlands of Buckinghamshire, Bedfordshire, and Northamptonshire. The routes are well-marked and suitable for both beginners and..

The Hawkhurst 10K & 5K is a vibrant running event held in the picturesque heart of Kent, designed for participants of all ages. This community-focused race features two main distances—10K and 5K—along with a free junior race for children aged 4 to 12. The course offers a scenic route through fields,..