Trail Running calendar near Chelmsford 2025-2026

The London Backyard Ultra is a unique endurance running event held at Frylands Wood Scout Outdoor Centre in Croydon, London. Participants run a four-mile loop every hour on the hour, continuing until only one runner remains, testing their true limits. The event offers a challenging yet supportive at..

The Henley River Half Marathon, 10k & Juniors event takes place in Henley-on-Thames, UK, on August 30, 2025. This scenic trail run is suitable for both new and experienced runners, featuring routes around Henley-on-Thames with beautiful views and a fast course ideal for personal bests. The race star..

The Ickworth Sunset Chase is a scenic running event held at Ickworth Park, a National Trust estate near Bury St Edmunds, Suffolk. Offering 5K and 10K distances, the race starts at sunset, guiding runners through landscaped parkland, meadows, forests, and rolling countryside. The course features mult..

The Shere 42k, 21k & 10k Multi Terrain Event is a popular trail running competition set in the picturesque Surrey Hills, recognized as an Area of Outstanding Natural Beauty. Participants can choose from three distances: a scenic 10k, a challenging 21k, or a full marathon at 42k. Each route features..

The South Coast Challenge will take place in Eastbourne on Saturday 6 September 2025. You can run between 16 and 63 miles.

The Bradenham Blast is a highly regarded trail running event held in the scenic Chiltern Hills at Manor Farm, Bradenham, UK. It offers 5km, 10km, and a new half marathon distance, catering to runners of all abilities. The course features challenging hills, tranquil beech woodlands, rugged trails, an..

The Muntjac 15 is a trail running event held on September 7, 2025, featuring a 15-mile course that connects five beautiful woodlands. This race is ideal for runners who enjoy hilly terrain, wooded areas, and single-track trails, offering a scenic and challenging experience. With a limited number of..

The Sufferings is a challenging trail running event held at Washington Village Hall in Pulborough, UK. The race features three distances: a half marathon, a full marathon, and a 39-mile ultra, all incorporating the toughest tracks of Chanctonbury and Cissbury rings. Participants face significant ele..

The Farnham Pilgrim Marathon is a scenic and challenging marathon event held in Farnham, Surrey, within the picturesque Surrey Hills. The course offers spectacular views and a demanding route that appeals to trail running enthusiasts. It is a bespoke event known for its beautiful multi-terrain, off-..

The SOX 10km is a scenic multi-terrain running event held in the South Oxfordshire countryside, starting and finishing at the South Oxfordshire Brewery taproom. The course covers 10 kilometers with about 60% off-road terrain, including trails, woodlands, fields, and local roads, featuring an elevati..

Thetford Back Yard Ultra is a competitive running event held at High Lodge in Thetford Forest, Suffolk. Participants run a 4.167-mile loop every hour on the hour, continuing until only one runner remains able to complete the loop within the one-hour time limit. This late summer event features chip t..

Bewl Water Autumn is a scenic bi-annual running event held near the Bewl Water Visitor Centre in Lamberhurst, Kent. The race features four distances: 10km, half marathon (13.1 miles), marathon (26.5 miles), and an ultra 50km (31.25 miles). The courses combine undulating rural wooded trails and quiet..

The Thames Path Ultra Challenge is a premier endurance event held in England along the scenic Thames Towpath, running from Putney Bridge in London to Henley-on-Thames. Participants can walk, jog, or run distances ranging from 10 km to 100 km, including options for 100 km continuous, 2-day daylight 1..

The Suffolk Coastal Path 50K is a scenic point-to-point ultra marathon trail run along the Suffolk coast, starting in Lowestoft and finishing in Aldeburgh. Covering 50 kilometers with just over 120 meters of elevation, the course passes through picturesque coastal towns including Southwold and Dunwi..

The c2c Essex Ultra is a charity ultramarathon event held along the Essex Riviera, supporting the children's cancer charity Gold Geese. Participants can choose between 30-mile and 50-mile routes, starting from Lansdowne Primary School in Tilbury and Upminster Station, respectively, and finishing at..

Brighton 50/50 September 2025 is a trail running event held at Black Rock, Brighton Marina, UK. It offers three race distances: 50 miles, 50 kilometers, and 23 kilometers. The 50-mile race challenges runners with a route starting at Brighton Beach, traversing the scenic South Downs to Beachy Head, a..

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 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 Ashtead 10k and 2k fun run, organized annually by Ashtead Running Group, takes place on rough, undulating tracks around Ashtead Common, a protected Site of Special Scientific Interest and National Nature Reserve. The course features historic landmarks including a Roman villa and a triangular ear..