Trail Running calendar near Guildford 2025-2026

The Mapledurham Backyard Ultra is a thrilling last-man-standing running event scheduled for May 3, 2025, at Mapledurham House in Reading. This endurance challenge features a 4.167-mile loop through Chazey Woods, where participants must complete laps on the hour, every hour, until only one runner rem..

The Centurion Thames Path 100 is a prestigious 100-mile trail race that takes place along the scenic Thames Path, stretching from Richmond in London to Oxford. This event, held annually, features a flat and fast course with a total elevation gain of 1,900 feet. Participants must complete the race wi..

The Isle of Wight Ultra Challenge is a premier endurance event taking place on May 3-4, 2025, featuring a stunning coastal path that attracts up to 2,000 participants. Participants can choose from various distances, including a full 106 km loop, 50 km, 25 km, and a 10-mile option, allowing for walke..

The Two Castles Trails is a unique trail running event featuring narrative races that guide participants through a circular route around Hedingham and Clare Castles. The marathon and half marathon routes are predominantly off-road, covering diverse terrains, and require runners to follow written ins..

The Three Forts Challenge is a renowned running event held annually in Worthing, featuring three race options: a full marathon, a half marathon, and a 5-mile trail run. The marathon, slightly longer than the traditional distance, takes participants through challenging terrain with steep climbs and s..

The Bluebell Bash is a scenic trail running event set in the picturesque bluebell forests of Manswood, Wimborne. Participants can choose from three distances: a half marathon (13.1 miles), a 10K, and a 5K, all of which are suitable for canicross. The event features well-stocked aid stations, a finis..

The Marlborough Downs Challenge is an exciting trail running event featuring two distances: a 33-mile race and a 20-mile race, both set in the stunning Wiltshire countryside. Participants will navigate scenic routes that include the Wansdyke Path, Tan Hill Way, and the White Horse Trail, with signif..

The Harewood Forest Trail Race is an annual running event held in the scenic Harewood Forest, located in the Test Valley, Hampshire. Participants can choose between 5k and 10k trail races, which feature undulating routes through beautiful landscapes, including fields and bluebell woods. The event pr..

BigWayRound - Winchester is an award-winning trail running event set to take place in 2025. Participants can choose from four distances: 14 miles, 19 miles, a marathon, and a 50K ultramarathon, all featuring stunning views of the English countryside. The course includes well-marked paths along the I..

The Silent Pool 10km is a guided trail running event set in the picturesque surroundings of Silent Pool, near Guildford. This evening run is designed for both novice and experienced runners, offering a unique experience of running at dusk or night. Participants will traverse scenic trails, including..

The Galleywood Gallop is a self-navigation trail race organized by Essex Trail Events, taking place on May 7, 2025. The course spans approximately 5 miles and features no river crossings, with participants relying on a written route description provided on the day of the event. This race is not mark..

The Collingbourne Races feature a half marathon and a 10km run, both set in the picturesque Collingbourne woods in Ludgershall. This off-road event offers a mix of bridle tracks, woodland paths, and single-track running, making it suitable for runners of all levels. Participants can expect ample par..

The Semington Slog 10K is a community-focused running event taking place on May 10, 2025, starting and finishing at St Georges School in Semington. Participants can choose between a 10K route that winds through the village and along the scenic Kennet and Avon Canal towpath, or a shorter 2K loop arou..

Run to the Sea Brighton is a scenic 50km ultramarathon that offers a unique multi-terrain experience from Horsham to the Brighton seafront. This well-organized event caters to both novice and experienced runners, providing a friendly atmosphere and stunning views throughout the course. Participants..

The Ridgeway 40 Walk is a challenging 40-mile event held annually, traversing the historic Ridgeway path from Avebury in Wiltshire to Streatley in Berkshire, UK. Participants navigate a scenic route rich in history, including ancient earthworks and Neolithic sites. The event provides essential suppo..

London 100 is an ultramarathon event organized by Camino Ultra, designed to challenge runners and enhance their endurance skills. Participants can explore new trails while pushing their limits in a supportive community atmosphere. The event aims to foster a love for running and personal growth among..

The Bewl Water Spring event is a scenic running series held at Bewl Water Country Park in Kent, featuring ultra marathon, marathon, half marathon, and 10km distances. The courses meander around the picturesque reservoir, combining undulating wooded trails and quiet country lanes, offering stunning v..

The LDWA South Downs Marathon is a challenging event set in the picturesque South Downs National Park, featuring two distances: 28 miles and 18 miles. Participants will experience over 4000 feet of ascent on the longer route, traversing stunning landscapes including the Seven Sisters and Cuckmere Ha..

The Halstead & Essex Marathon is set to return in May 2025 for its 29th edition, having been established in 1995. This annual event, organized by Halstead Road Runners, attracts participants from across the UK and beyond, taking place on scenic, low-traffic roads in North Essex. Known for its welcom..

The Stroud Trails Event is a challenging running event set in the picturesque Cotswolds, featuring four different trail runs: a Quarter Marathon (11K), Half Marathon, Marathon, and an Ultra 40. Participants will navigate a mix of local trails, hills, and scenic views, all within an area of outstandi..