Trail Running calendar near Chelmsford 2025-2026

We have found 310 Trailruns within 80 miles of Chelmsford. See below where and when you can find the races.

The South Downs Trail Half Marathon and 10K, hosted at Queen Elizabeth Country Park near Petersfield, are celebrated trail running events in the South of England. Participants will enjoy scenic routes that connect with the South Downs Way, traversing beautiful downland and forested areas. The half m..

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 race features a scenic route that includes a mix of undulating terrain, single track forest paths, and open tracks..

The Valley of the Owls Run is a scenic running event held 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 marathon, with a social out-and-..

Stately Trails: Forcett Park is an exciting running event set in the historic Forcett Park, featuring a two-lap course that showcases ancient Iron Age fortifications and a Georgian grotto. Participants can choose between a 5km or 10km run, with trails winding through picturesque pasture fields, farm..

The Nene Valley Trail Run features friendly and scenic 10 and 20-mile off-road races set in the picturesque Nene Valley. Participants will enjoy running through beautiful landscapes, including green fields, ancient woodlands, and charming villages. The event, organized by Nene Valley Races, takes pl..

The Norfolk Festival of Running is an inaugural event set in the scenic Bawsey Country Park. Participants can choose to run for six hours or four hours, covering a 5.3k lap through the park's gravel paths and grassy areas. This flexible format allows runners to complete as many laps as they wish, ma..

The Hampshire Hoppit is an exciting off-road trail running event held 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 event features well-marked and marshalled routes that include sectio..

The Herts Hobble is a challenging running event taking place in North West Hertfordshire, offering participants the choice of two circular routes: 26 miles or 18 miles. Set against the backdrop of undulating countryside, the event is designed for those aged 16 and older. Participants can enjoy sceni..

The Run Sandringham 10K is a prominent running event scheduled for June 15, 2025, set within the picturesque Royal Sandringham Estate in Norfolk. This race welcomes participants of all abilities to enjoy a scenic route through the estate and surrounding areas, while also supporting charitable causes..

The Robertsbridge Midsummer 10K & 5K is a vibrant community running event set to take place in 2025. Organized by the Robertsbridge Bonfire Society, this race features a scenic multi-terrain course suitable for runners of all abilities, making it an excellent choice for both beginners and seasoned a..

The John Clarke Memorial Race will take place in London on Friday 20 June 2025.

The Longbridge 100 Backyard Ultra is an inaugural running event designed for both seasoned and novice runners. This last-man/woman-standing race requires participants to complete a 4.167-mile loop every hour until only one runner remains. The event promises excitement and camaraderie, with support f..

The Centaur 100 Mile Ultra, organized by Phoenix Running, is a unique endurance event designed for both seasoned ultra-runners and first-time participants. Set in a scenic wine estate, the race features a flat, single-mile loop, allowing runners to complete the distance within a generous 30-hour tim..

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

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 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..

Beyond Trails London is an exciting trail and ultra running event set to take place in June 2025. Participants can choose between a 25km trail route or a challenging 55km ultra route, both of which explore hidden trails and iconic sights around London. The event emphasizes inclusivity, welcoming run..

Race to the King is an exhilarating ultramarathon event set along the scenic South Downs Way and Monarch’s Way. Participants can choose from three challenges: the Coastal 50k, the Castle 50k, or the full 100k, which combines both loops. The event is designed to accommodate runners of all levels, fea..

UTMB Index

The Oxford Greenbelt 10km is a scenic running event set in the beautiful Oxfordshire countryside, scheduled for June 21, 2025. This race is part of a larger event that includes a 3km and a 1km run, catering to participants of various ages and abilities. The 10km course features a predominantly off-r..

The Woodland Trail is a running and walking event organized by DENS, offering participants the choice of 5 or 10-mile routes through scenic woodland and nature. This event aims to promote physical activity while supporting local communities facing homelessness and poverty. Participants can enjoy wel..