Trail Running Calendar South East (England) 2025-2026

The Surrey Hills Half Marathon is a scenic 13-mile guided trail run starting and finishing in Guildford, Surrey. Ideal for those new to trail running, the course features beautiful landscapes including St Martha's Hill and Church, the village of Shere, Newlands Corner, Hackhurst Downs, and parts of..

Saturn Running's Midweek Chasing Numbers event takes place at Wraysbury Skiff & Punting Club in Egham, along a scenic stretch of the River Thames. This flexible 7-hour time challenge allows participants to run as many laps of a 4.37-mile (7km) course as they wish, with distances ranging from a minim..

The Blended Trails - Backyard Ultra will take place in New Alresford on Saturday 7 June 2025.

The Magna Carta Summer race, organized by Hermes Running, takes place in scenic Runnymede, Surrey, near the historic site where the Magna Carta was signed in 1215. The event starts at the Wraysbury Skiff & Punting Club by the River Thames, featuring flat, fast, and picturesque out-and-back loop cour..

The South Downs Trail Half Marathon and 10K, hosted at Queen Elizabeth Country Park near Petersfield, are celebrated trail running events in the South of England. Participants will enjoy scenic routes that connect with the South Downs Way, traversing beautiful downland and forested areas. The half m..

The South Downs Trail Half Marathon and 10K, taking place at Queen Elizabeth Country Park near Petersfield, are renowned trail running events in the South of England. Participants can enjoy scenic routes that connect with the South Downs Way, featuring beautiful downland and forested landscapes. The..

Hellfire Socials is a relaxed monthly trail running event held at Dover Seafront, meeting at Rebels Coffee & Sauna. Participants gather for an informal 10-mile run on trails, emphasizing camaraderie over competition—there are no finish lines or medals. The run is social and inclusive, welcoming dogs..

The Dell 10km is a scenic multi-terrain running event held at Dummer Down Farm in Hampshire, England. The course covers 10 kilometers, primarily off-road (90%), featuring trails through private farmland, woodlands, fields, and local roads with an elevation gain of 163 meters. Runners start and finis..

The Centurion South Downs Way 100 is a challenging 100-mile non-stop ultramarathon held annually in Southern England, following the entire South Downs Way National Trail from Winchester to Eastbourne. The course features stunning rolling hills, ancient forts, picturesque villages, and expansive view..

The Guildford Urban will take place in Guildford on Sunday 15 June 2025.

The Hampshire Hoppit is a scenic trail running event held in the picturesque countryside of Hampshire, centered around the village of Kingsclere. It offers three race distances: a marathon, half marathon, and 10k, all featuring clearly marked, single-lap off-road courses with friendly marshals. The..

The Epsom Summer Series 2025 is the first of four evening orienteering events organized by MVOC, held in Epsom at The Blenheim pub. It offers a welcoming atmosphere for runners of all abilities, featuring a 60-minute score snooker format for experienced participants and a simpler approximately 3km l..

The Longbridge 100 Backyard Ultra is an inaugural running event designed for both seasoned and novice runners. This last-man/woman-standing race requires participants to complete a 4.167-mile loop every hour until only one runner remains. The event promises excitement and camaraderie, with support f..

The Robertsbridge Midsummer 10k & 5k is a popular community race held annually in East Sussex, returning in 2025. The event features multi-terrain, undulating courses suitable for all abilities, including a junior run. Participants can enjoy a friendly atmosphere with local support, volunteers, and..

The Phoenix Denbies Marathon & Half Marathon takes place at Denbies Wine Estate in Dorking, Surrey. This unique off-road trail event features a flat-ish, approximately 1-mile loop course through the scenic wine estate trails, with slight inclines and cambers. Runners can choose to complete either a..

The Centaur 100 Mile Ultra, hosted by Phoenix Running, is a unique off-road trail event held at Denbies Wine Estate in Dorking, Surrey. Featuring a flat-ish 1-mile loop course through scenic vineyard trails, it offers a challenging yet accessible ultra-distance experience. Runners can choose from mu..

The Oxford Greenbelt 10km is a scenic running event held in Oxfordshire, hosted at Brookes Sport, Oxford (OX2 9AT), home to the Harcourt Hill Parkrun. The 10k course is predominantly off-road and undulating, featuring a section of the Oxford Greenbelt Way, offering picturesque views of the countrysi..

Race to the King is an ultramarathon event held at West Dean Gardens, featuring challenging trail runs along the South Downs Way and Monarch’s Way. Participants can choose from three distances: the Coastal 50k, a flat and scenic loop around Chichester Harbour with 500m elevation; the Castle 50k, a m..

P24 - The Longest Attended Day is a unique endurance running event held at Denbies Wine Estate in Dorking, Surrey. Participants run one mile every hour on the hour for 24 consecutive hours, covering a total of 24 miles on a mostly flat off-road trail through the scenic wine estate. The event takes p..

The Three Shires Way Ultra & Marathon is a point-to-point trail running event held in the rural landscapes and ancient woodlands of Buckinghamshire, Bedfordshire, and Northamptonshire. It features a 50-mile ultra and a marathon distance, both suitable for beginners and experienced runners. The ultra..