Trail Running calendar near Chelmsford 2025-2026

We have found 312 Trailruns within 80 miles of Chelmsford. See below where and when you can find the races.

The SOX 10km is a multi-terrain running event set in the picturesque South Oxfordshire countryside, starting and finishing at the South Oxfordshire Brewery taproom. This event, which is also Canicross friendly, features a scenic trail suitable for all abilities, incorporating private terrain, woodla..

The Bradenham Blast is a highly regarded trail running event featuring 5km, 10km, and a new half marathon option, set in the picturesque Chiltern countryside. Known for its challenging hills and scenic views, the race takes participants through tranquil beech woodlands and rugged trails. The event i..

Muntjac 15 is a scenic trail race that connects five beautiful woodlands, perfect for enthusiasts of hills, woods, and single-track racing. The event is designed for those who appreciate the natural landscape while challenging themselves physically. Registration for the event has closed, and it is s..

The Farnham Pilgrim Marathon is a challenging trail marathon set in the picturesque Surrey Hills, known for its stunning scenery and diverse terrain. Scheduled for September 2025, this event offers participants a unique running experience, with options for both a half marathon and a full marathon. T..

The Thetford Back Yard Ultra is a competitive running event held at High Lodge in Thetford Forest, Suffolk. Participants run 4.167 miles every hour on the hour, continuing until only one runner remains who can complete a loop within the one-hour time limit. This late summer edition of the Backyard U..

The C2C Essex Ultra is an ultramarathon event taking place in September 2025, offering participants the choice of running or walking either 30 or 50 miles along the scenic Essex Riviera. Organized by c2c, the event aims to raise funds for the children's cancer charity Gold Geese, which provides esse..

The Brighton 50/50 event, organized by RunThrough UK, features a range of trail races including 50 miles, 50k, and 23k, all set against the stunning backdrop of the South Downs and Brighton coastline. Participants will experience a challenging yet rewarding course that showcases beautiful landscapes..

The Thames Path Ultra Challenge is a premier endurance event taking place along the scenic Thames Towpath, featuring various distance options including 100 km, 75 km, 50 km, and 25 km. Scheduled for September 13-14, 2025, participants can walk, jog, or run, starting from Putney Bridge and finishing..

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The Suffolk Coastal Path 50K is an ultra marathon race along the scenic Suffolk coast, running from Lowestoft to Aldeburgh. The 50 km course features a mix of paved paths, country lanes, and trails, with a gentle elevation gain of over 120 meters. Fully marked and supported by aid stations, the race..

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Bewl Water Autumn is a scenic bi-annual running event held near the Bewl Water Visitor Centre in Lamberhurst, Kent. Participants can choose from four different race distances: a 10km, half marathon, marathon, and a 50km ultra. The courses feature a mix of undulating rural trails and quiet country la..

The Roman River Trails event offers participants the choice of a half marathon or marathon, featuring self-navigation routes through the picturesque Roman River valley near Colchester. The predominantly hard-packed trail includes sections of tarmac and grass, with several river crossings and some hi..

The Dunstable Downs Challenge Half Marathon will take place in Dunstable on Sunday 14 September 2025. You can run 13 miles.

The Rye Ancient Trails 30K & 15K is a scenic steeplechase race set in the picturesque surroundings of Rye, East Sussex. Participants can choose between two distances, 30K and 15K, as they traverse the ancient trails of the High Weald Area of Outstanding Natural Beauty. The course features a mix of h..

The The Sudbury Trail Run will take place in Sudbury on Sunday 14 September 2025.

The Sandridge 10k is a scenic trail running event set in the picturesque village of Sandridge, near St Albans. Participants can enjoy a beautiful 10k course that showcases the natural beauty of the area. The event is organized by Active Training World, and it promises a rewarding experience for both..

The Run London Epping Forest Trail 10k is a popular running event scheduled for September 14, 2025, in the scenic Epping Forest, Chingford. Participants will complete a 10k course consisting of two laps through the forest, known for its rich biodiversity and beautiful landscapes. The race is designe..

The Alf Shrubb Memorial 10k and 5k is a running event held in Slinfold, honoring local hero Alf Shrubb, a renowned runner born in the village. Scheduled for September 14, 2025, the event features a scenic route through the beautiful West Sussex countryside, with chip-timed races for adults and child..

The Lucky Horseshoe is an exciting running event hosted at the Suffolk Running Centre in Bury St Edmunds. Participants can choose from various distances, including 5k, 10k, Half, Full, or Ultra, with a seven-hour cut-off time. The race features a social out-and-back route, allowing runners to enjoy..

The Humanity Direct Tring Ultra is a one-day ultra marathon event set in the scenic Chilterns, designed for both novice and experienced runners. Participants can choose from three distances: a full 50km ultra, a 27km half ultra, or a new 10km option. The event not only offers a challenging running e..

The Triple Trail Races, part of the Embrace Ultra event, is set to take place in Kent, featuring two main race options: a 100km Full Loop and a 50km Half Loop. The 100km race is unique as it is the only single-loop ultra marathon in Kent, traversing iconic trails like the North Downs Way and Greensa..

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