Trail Running Calendar East of England 2025-2026

The OMG (One Mile 2 Go) Run, organized by ZigZag Running, takes place at Bawsey Country Park, located on the B1145 between Queen Elizabeth Hospital and Gayton. This trail event offers multiple distance options including 5k, 10k, 15k, Half Marathon, Full Marathon, and Ultra Marathon, catering to both..

The Peddars Way Ultra Marathon is a 48-mile ultramarathon held in Suffolk and Norfolk, England. The route follows the historic Peddars Way, an ancient pre-Roman trading path and Roman road, starting at Knettishall Heath Nature Reserve and finishing at Holme-next-the-Sea on the Norfolk Coast. The cou..

Lavenham 10K Race, the Lavenham Old Railway 10k Trail Race, takes place in Lavenham, Suffolk. The scenic 10-kilometre mixed-terrain route runs along a former railway line through the village’s historic streets, with sections on footpaths, forest trails, shallow streams and quiet rural roads. It’s de..

The Cold Norton Charity Winter 10K & Half Marathon Trail Event is a winter charity trail run in Essex, raising funds for Farleigh Hospice. Held at Charity Farm, Crows Lane, Woodham Ferrers, it offers 10K and 13.1-mile routes run mainly on grass, tracks and rural paths around Woodham Ferrers. The cou..

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..

Marriott's Way Marathon and Half Marathon, organized by Boghopper Races, takes place on Marriott’s Way, with the marathon starting in Norwich and the half at Whitwell. The course is a traffic-free, easy-to-follow trail suitable for runners and walkers, with generous time allowances. Distances are ap..

Zig Zag’s Thetford Festival of Running takes place at High Lodge in Thetford Forest, Brandon (IP27 0AF). Runners choose from 5k, 10k, half marathon, full marathon or ultra, all on a largely flat loop through the forest with a small section of trails and woodland (final route to be confirmed). The ev..

St Peters Way Ultra is a 42-mile trail ultramarathon that runs along the St Peter’s Way from Chipping Ongar to the Chapel of St Peter-on-the-Wall at Bradwell-on-Sea, Essex. The route follows an ancient pilgrimage path through historic countryside, with sections of muddy trails, fields, and bridleway..

Hadleigh Legacy 10k is an award-winning, sell-out trail running event at Hadleigh Country Park in Essex. The 10-kilometre single-loop course blends footpaths, fields and off-road trails with an undulating, hilly profile and plenty of mud, set against views of Hadleigh Castle. The GPS-marked, multi-t..

Stody Estate Trail Run offers exclusive access to the private Stody Estate near Holt, North Norfolk, inviting runners to trade roads for woodland and open-field trails with a couple of challenging inclines. The event features three distances—4k, 8k, and 12k—through the estate and surrounding country..

High Lodge Half Marathon – Spring is a circular trail race set in Thetford Forest, offering a friendly atmosphere for both seasoned trail runners and newcomers. The multi-terrain course loops through hard-packed trails, forest paths, sandy sections, and grassy footpaths, with wildlife such as fallow..

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 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 Run the Wild Half Marathon is a guided trail event based in the Chiltern Hills, starting from The Home Office in Tring. The route covers around 13 miles (about 21 km) with approximately 300 m of ascent. The course runs over undulating chalk hills and through local woods. Runners are led by loca..

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 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 Thames Ring 250 is a challenging 250-mile (approximately 256 miles) trail ultramarathon starting and finishing in Streatley-on-Thames, UK. The race follows an anti-clockwise loop along the Thames, the Grand Union Canal, and the Oxford Canal, primarily on flat canal and riverside paths. Despite t..

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..

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 picturesque a..

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..