Trail Running calendar near Hadleigh 2025-2026

We have found 224 Trailruns within 80 miles of Hadleigh. See below where and when you can find the races.

The St Peters Way Ultra is a 43-mile ultramarathon across Essex, starting from Chipping Ongar and finishing at Bradwell on Sea, at the UK's oldest chapel. The course follows an ancient pilgrimage route over 1,500 years old, passing through historic villages, numerous churches, and scenic Essex count..

The ZigZag - Thetford Festival of Running takes place at High Lodge in Thetford Forest, Brandon. This intimate event offers multiple race distances including 5k, 10k, Half Marathon, Full Marathon, and Ultra Marathon, all run on a mainly flat 5km loop course through pathways, trails, and woodland wit..

March 2026

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

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 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. Running in the dark requires a head or chest torch, with Petz..

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. The course features rolling chalk hills and local woods with an ascent of around 300 meters, offering a beautiful and undulating terrain...

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 4-hour or 6-hour race, running multiple laps of a 5.3 km multi-terrain course featuring gravel footpaths and grass areas. The event suits..

April 2026

The Haughley Festival of Running, held at the exclusive Haughley Park in Suffolk, offers a variety of race distances including 5k, 10k, Half Marathon, Full Marathon, and Ultra Marathon. Now in its fourth year, this intimate event features a mainly pathway course with some trails and woodland section..

The Windsor 50 Ultra Challenge, formerly known as the Easter 50, is a premier UK trail running and walking event held at Windsor Racecourse. Participants can choose from 50km, 25km, or 10km looped routes that showcase scenic views of Windsor Castle, the Great Park, Runnymede, and the Thames Path. Th..

The Chiltern Ridge Classic 50K is an iconic ultra marathon held in the Chiltern Hills, UK, featuring a challenging 51 km trail run with 996m of elevation gain. Starting at historic Berkhamsted Castle and finishing at Hampden Meadow in Wendover, the course traverses stunning ridgeline trails includin..

UTMB Index

The Thames Ring 250 is an iconic 250+ mile ultramarathon loop starting from Goring, following the River Thames into London, then along the Grand Union Canal and back down the Oxford Canal to the finish. Established in 2009, it was the first race of its kind, known for its challenging course and high..

The Other Run, organized by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds, coinciding with the London Marathon day. It offers multiple distance options: 5k, 10k, half marathon, and full marathon. The marathon follows the officially measured, scenic, and mildly undulat..

May 2026

The Centurion Thames Path 100 is a 100-mile marked point-to-point trail race from Richmond in London to Oxford University grounds. The course follows the Thames Path, offering a flat and fast route mostly on groomed trails and paved paths, with stunning English riverside scenery. Runners face a tota..

The Holy Trail Festival of Running, organized by Boghopper Races Ltd, is a new trail running event held at Nicholas Everitt Park, Oulton Broad, Lowestoft, Suffolk. Scheduled for May 9, 2026, it offers three distances: a 50-mile circular route with a 15-hour limit, a 50 km course, and a full trail ma..

The Chiltern Hills 100K is a 100-kilometer ultra marathon held in the Chiltern Hills, Buckinghamshire, UK. The race features an anticlockwise loop starting and finishing in Chesham, passing iconic landmarks such as Ashridge Estate, Coombe Hill, Whiteleaf Hill, Bledlow Ridge, and Great Hampden. The c..

UTMB Index

The Halstead & Essex Marathon, established in 1995, is an annual running event held in North Essex, starting at Halstead Leisure Centre. Celebrating its 30th year in 2026, the marathon features a scenic course on low-traffic roads through rolling hills, woods, and farmlands, offering a beautiful and..

The Zig Zag Marathon and Half Marathon take place at the Suffolk Running Centre in Bury St Edmunds, UK. The marathon follows the officially measured, scenic Kirtling Route, which is fully on road and mildly undulating, while the half marathon uses the Windmill Route, both featuring quiet roads. The..