Trail Running calendar near Sudbury 2025-2026

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..

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..

The High Lodge Half Marathon - Spring is a scenic trail running event held in Thetford Forest, known for its wildlife including fallow deer and wild thyme. This circular half marathon course features a mix of hard-packed sand, grassy footpaths, and forest trails, offering a multi-terrain challenge s..

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 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..

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 Run the Wild Half Marathon - Spring Edition is a 13-mile (21.1 km) trail running event set in the scenic Chiltern Hills, just 40 minutes northwest of London near Tring. Featuring rolling chalk hills and woodland paths with around 300m of ascent, the course offers a welcoming atmosphere for all a..

The Zig Zag Challenge is a timed running event held at Brandon Country Park in Suffolk, located in the heart of Thetford Forest. Participants can choose between a 6-hour or 4-hour challenge, running multiple laps of a 5.3 km multi-terrain course featuring gravel footpaths and grass areas. The event..

The Rose of the Shires Ultra is a scenic 54-mile ultra marathon held in Northamptonshire, England, starting and finishing at Brixworth Country Park. The circular course features approximately 70% trails, including country paths, towpaths, and forest tracks, with the remaining 30% on roads. Runners t..

The Henley River Half Marathon, 10k & Junior Race takes place in April 2026 at Temple Island Meadows, Henley-on-Thames, UK. This scenic event features a mixed-terrain, undulating course along the Thames, starting and finishing at the iconic Royal Henley Rowing Regatta launch point. The half marathon..

The Rosebud Marathon is a scenic 26.2-mile race held in Northamptonshire, England, featuring a mix of approximately 60% trails and 40% roads. Starting at Hartwell and finishing at Brixworth Country Park near Northampton, the course traverses beautiful countryside, including canal towpaths and 14 vil..

The Haughley Festival of Running is an annual event held at the exclusive Haughley Park in Suffolk, offering a range of race distances including 5k, 10k, Half Marathon, Full Marathon, and Ultra Marathon. Now in its fourth year, the festival provides an intimate and self-contained setting with exclus..

The Battle of the Brampton Valley Way is a unique ultra running event held in Leicestershire and Northamptonshire, featuring a 28-mile (45km) out-and-back course along the flat, traffic-free Brampton Valley Way. Runners choose to start from either Market Harborough or Northampton, representing their..

The Nene Valley Races - Kings Cliffe 10K is a friendly and scenic trail running event held in the beautiful Nene Valley countryside, starting and finishing at KC Active in Kings Cliffe, Northamptonshire. The circular 10K course features easy tracks, green fields, farm paths, and disused railway line..