Trail Running calendar near Guildford 2025-2026

Dash & Splash is a 5-kilometre fun run held along the scenic Sandown Bay on the Isle of Wight, starting at Shanklin Rowing Club and finishing at Yaverland near the Yaverland Sailing Club. The course features a unique route along the hard sand at low tide, navigating 43 groynes—most with wide gaps, w..

The Foxton Hound Ultra, held near Market Harborough, offers two challenging trail races of 100k and 50k distances through the scenic countryside and villages of Northamptonshire and Leicestershire. The routes follow the Harborough Round long-distance footpath, featuring notable landmarks such as Fox..

The Big Pilgrimage is an exciting mixed terrain running event featuring a 15-mile course and a marathon, set to take place along the historic 'Old Way' Pilgrim Trail from Southampton to Canterbury. Participants will enjoy scenic views as they traverse beautiful coastal and countryside paths, with no..

The Firle 5km Handicap Trail Race is a scenic trail running event held at Firle Village Hall in the UK. The race features a 5km out-and-back course along the Old Coach Road, primarily on hard trail surfaces with some quiet country lanes, offering beautiful views of the South Downs. It is a handicap..

The Two Tunnels Races, held in Bath, UK, offer a unique running experience featuring the longest underground sections in the country. The course passes through the historic Devonshire Tunnel (408m) and Combe Down Tunnel (1672m), part of the former Somerset & Dorset Railway, now a shared-use path. St..

The Windsor & Eton 10km is a scenic multi-terrain trail run held in the historic Royal 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 inclu..

The Admiral McHilly Trail is a challenging trail running event held in Chelmsford, Essex, featuring an approximately 15-mile course with significant elevation, including over 900 feet of climbing and descent concentrated in the middle section. The race follows a self-navigation format using a writte..

The Phoenix Striders Summer Series is a trail running event held at the Essex Wildlife Trust's Langdon Discovery Nature Park, part of Langdon Hills. The 2025 series culminates in Round 5, a 5k race consisting of two laps around a 2.5k trail circuit featuring natural terrain such as tree roots, cobbl..

The Gosfield Backyard Ultra is a unique endurance running event held at Gosfield School in Essex, UK. Participants run a 4.167-mile (6.7 km) loop every hour on the hour, continuing until only one runner remains. The course is fully marked and set within the scenic school grounds, offering a challeng..

The SEOUL Urban Epsom is a Level B urban orienteering event held in the historic spa town of Epsom, known for its racecourse and scenic North Downs views over Central London. The event features multiple courses ranging from 2.0 km for young juniors to 11.4 km for men's open, with varied climbs and t..

Run Winchcombe is a family-friendly running event held at the historic Sudeley Castle in Winchcombe. It offers three race distances: a 1k for children under 11, a 5k for ages 11 and over, and a 10k for participants 16 and older. The courses feature scenic routes around the castle grounds, including..

The Woldingham Full and Half Marathon, staged by 1 Mile Events, takes place at Woldingham School in Caterham, Surrey. It offers a Half Marathon (13.1 miles) and Full Marathon (26.2 miles). Both routes are out-and-back: the half runs one loop, the full two loops. Starting from the school, runners tra..

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

The Chelmsford Brew Co Summer August Ale Trail 10K is a fun, charity-focused running event held in Chelmsford, supporting the British Heart Foundation. The 10K course is a GPX/Strava-mapped trail with a narrative guide, designed for enjoyment rather than competition. Participants receive a drink and..

The Mendip Marauder is a challenging ultra running event held in Somerset, England, featuring two distances: a 30-mile and a 50-mile race. The 50-miler covers the entire Mendip Way, starting in Frome and finishing at Uphill Sands Beach, while the 30-miler begins in Wells and follows the latter part..

Henley River Half Marathon, 10k & Juniors August 2025 is a RunThrough UK event held in Henley-on-Thames, UK. The course offers a fast scenic trail around Henley-on-Thames, starting and finishing by Temple Island Meadows, the official start line for the Royal Henley Rowing Regatta. Distances availabl..

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..

Southampton Running Festival, hosted by RunThrough UK, returns on Sunday 31 August 2025 in Southampton. The event takes place at The Avenue, Southampton SO15 7NN, with the start and finish on Southampton Common, a Site of Special Scientific Interest ideal for running. Distances on offer include 5K,..

The T184 is a challenging 184-mile self-supported adventure race following the River Thames from its source near Cirencester to the Thames Barrier in London. Participants navigate through scenic towns, villages, and iconic London landmarks, completing the course within 76 hours. The route alternates..

The 2nd Galloping Grind 10k Trail Run takes place in Boreham, Essex, offering a challenging 10-kilometer course predominantly run in an anti-clockwise direction. This dusk race encourages participants to wear high-visibility or reflective clothing for safety. The event features a new course for 2025..