Trail Running calendar near Guildford 2025-2026

We have found 334 Trailruns within 80 miles of Guildford. See below where and when you can find the races.

The Westonbirt Arboretum Winter Day Race is a scenic running event set in the stunning National Arboretum, featuring over 2,500 tree species. Participants can choose between a 5km or 10km race, with routes that showcase the beauty and diversity of the arboretum's landscape. The event is designed to..

XTERRA Matterley is an off-road sporting event held at the scenic Matterley Basin in Hampshire, United Kingdom. Scheduled for February 14-15, 2026, it offers a variety of race formats including duathlons and trail runs suitable for athletes of all levels. The duathlon races feature distances such as..

The 'Rayne'ing Medals Anniversary Challenge is a running event celebrating six years of Hare & Tortoise Running, taking place on The Flitch Way in Rayne. Participants can choose from five entry options, including a marathon, 6-hour timed event, 5km, 10km, and half marathon. The course features 5km l..

The Two Tunnels Races, taking place in February 2026, offer a unique running experience through Bath's historic underground tunnels, the longest of their kind in the UK. Participants can choose from a variety of distances, including ultra marathons, half marathons, 10km, 5km, and family-friendly Col..

BigMud Trails (EARTH) is the first event in the Classic Element Trail Series, celebrating the element of Earth. Set in the scenic Meon Valley at Queen Elizabeth Country Park, participants can choose between a 16-mile or marathon distance, both featuring challenging single-lap courses with significan..

The Hadleigh Legacy 10k is an award-winning trail running event held at Hadleigh Country Park in Essex. Known for its challenging and exhilarating course, the race features a single lap of 10 kilometers over undulating terrain with tough hills, mud, and iconic kissing and latch gates. The route offe..

The St Peters Way Ultra is a challenging 42-mile trail ultra marathon held in Essex, England, following an ancient pilgrimage route from Chipping Ongar to the historic St Peter-on-the-Wall chapel at Bradwell on Sea. The course traverses scenic countryside, historic churches, and varied terrain inclu..

The Fitstuff G3 Series No.3 is a running event held at Newlands Corner, Drove Road, Guildford, Surrey. Scheduled for Saturday, 28 February 2026, it offers two race distances: 15km and 10km. The event features a scenic course starting and parking at Newlands Corner, providing runners with a picturesq..

March 2026

The Pitsford Water Trail Races, organized by Race Harborough, take place at Brixworth Country Park in Northamptonshire. The event features fully marked and marshaled trail races over 10k and half marathon distances. The scenic courses traverse trails and tracks around Pitsford Water, with the half m..

Endurancelife Sussex offers a scenic trail running event featuring 10K, half marathon, marathon, and ultra distances along the iconic coastal landscapes of Eastbourne and Seaford, adjacent to the South Downs National Park. The courses showcase the famous Seven Sisters chalk cliffs and expansive view..

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The Leith Hill Half Marathon is a challenging cross-country race that takes participants from Dorking to the summit of Leith Hill, the highest point in south-eastern England, and back. Spanning 13.1 miles with an elevation gain of 1,800 feet, this event is celebrated for its stunning scenery and sup..

The Hannington Hike will take place in Hannington on Sunday 8 March 2026.

The Centurion Hundred Hills 50km is a scenic trail ultramarathon held in the Chiltern countryside, England, starting and finishing at the historic 850-year-old Stonor Park near Henley-On-Thames. The race features two distinct 25km loops, covering 50 kilometers with approximately 4,000 feet of elevat..

The Humanity Direct Amersham Ultra is a one-day endurance event held in the scenic Chiltern Hills, starting and finishing at Dr Challoner's Grammar School in Amersham, Buckinghamshire. Participants can choose from three distances: 10km, 25km (half ultra), or the full 50km ultra marathon, with ascent..

The Gratitude 25km is an exciting running event taking place in Broxbourne, UK. This race is designed for runners of all levels, promoting fitness and community spirit. Participants will enjoy a scenic route while challenging themselves to complete the 25km distance. The event emphasizes the importa..

The ZigZag 2026 Moo-rathon, Calf and Hen K at the Farm is a trail running event held at Hyde Hall Farm, SG9 0RU. Returning for its third year, the event offers multiple distance options including 10k, half marathon, full marathon, and ultra marathon. The course features a mix of tarmac paths, grassl..

Winter's End - 50 Mile Ultra & Marathon is a scenic trail running event held along the South Downs Way National Trail, starting near Arundel, West Sussex, and finishing in Winchester, Hampshire. The event features a 50-mile ultramarathon and two marathon options covering either the first or second h..

The Windsor Trail Run March 2026, hosted by RunThrough UK, takes place on March 22, 2026, at Alexandra Gardens in Windsor, UK. This event offers two race distances: a 10K and a Half Marathon, both featuring flat, trail terrain with scenic views of Windsor Castle. The 10K has an elevation of 29 meter..

The Petzl Night Trails 10K at Salcey Forest is a unique night trail running event held near Northampton. Participants run a fully marked, two-lap 10K course on crushed stone paths through the flat but occasionally slippery forest terrain. Runners must use a head or chest torch to navigate the dark t..

The Elephant Challenge by Big Bear Events is a unique 6-hour running event held at Salcey Forest, near Northampton, England. Participants run multiple laps of a 3.5-mile off-road loop through well-maintained forest paths, with terrain consisting mainly of crushed stone and forest floor, offering a n..