Trail Running calendar near Grantchester 2025-2026

The Foxton Hound Ultra, held near Market Harborough, offers two challenging trail races of 100k and 50k distances through the scenic countryside of Northamptonshire and Leicestershire. The routes follow the Harborough Round long-distance footpath, passing through historic villages like Houghton on t..

The Windsor & Eton 10km is a scenic multi-terrain trail run held in the historic town of Windsor, starting and finishing near the Windsor & Eton Brewery by the River Thames. The pancake-flat course covers 10 kilometers, featuring towpaths, footpaths, and short road sections through areas including t..

Letting Off Steam is a charity running event held at Whitwell and Reepham Railway Station, featuring 5km and 10km race options along the scenic Marriott's Way and local footpaths. The 5km route is family-friendly, suitable for all ages with under-11s accompanied by an adult, while the 10km race is f..

The Gosfield Backyard Ultra is a unique endurance running event held at Gosfield School in Essex, UK. Participants run a 4.167-mile (6,706 meters) loop every hour on the hour, continuing until only one runner remains. The course is fully marked and set within the scenic grounds of the school.The eve..

The Derby Running Festival 2025 takes place at Elvaston Castle Country Park in Derby, UK. This event offers 5K, 10K, and Half Marathon distances on a flat, multi-terrain course featuring trails, tarmac, and footpaths through the scenic grounds of the Grade II listed Elvaston Castle, including views..

The Woldingham Marathon is a UK Athletics-affiliated running event held at Woldingham School near Caterham, Surrey. It offers both a full marathon (26.2 miles) and a half marathon (13.1 miles) on an out-and-back course featuring a single 13.1-mile loop. The route showcases scenic countryside, includ..

Trail Run Canterbury is a scenic trail running event held around the outskirts of Canterbury, starting from St. Edmund's School. The event offers three distance options: 5.5 miles, 10 miles, and 20 miles, with the longest being two loops of the 10-mile course.Runners experience a mix of open country..

The Chelmsford Brew Co Summer August Ale Trail 10K is a fun, charity-focused running event held at Brewery Fields, Great Baddow, Chelmsford. Scheduled for August 28, 2025, the 10K course is a GPX/Strava route with a narrative guide, emphasizing enjoyment over competition. Participants receive a drin..

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 2nd Galloping Grind 10k Trail Run takes place in Boreham, Essex, offering a challenging 10-kilometer course predominantly run anti-clockwise through scenic orchards and trails. This dusk race encourages participants to wear high-visibility or reflective clothing for safety. Limited onsite parkin..

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

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 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 at the South Oxfordshire Brewery in Ipsden, UK. The course covers 10 kilometers with about 60% off-road terrain, including trails, woodlands, fields, and local roads, offering stunning countryside views. Suitable for all abilities, the event..

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, marathon, and a 50km ultra. The courses combine undulating rural wooded trails and quiet country lanes, offering stunning views a..

The Thames Path Ultra Challenge is a premier endurance event in England, following the scenic Thames Tow Path from Putney Bridge in London to Henley-on-Thames. Participants can walk, jog, or run distances ranging from 10 km to a full 100 km ultra, with options for 75 km, 50 km, and 25 km as well. Th..