Trail Running Calendar East of England 2025-2026

The Circuit du Sore Legs is a unique running event held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. Participants run on a traffic-free 400-meter athletics track, with distances ranging from 5k (12.5 laps) to a 6-hour unlimited challenge, including 10k, half marathon, full marath..

The Suffolk Back Yard Ultra is a highly competitive ultrarunning event held at High Lodge in Thetford Forest, Suffolk. Participants run a 4.167-mile loop every hour on the hour, continuing until only one runner completes a loop within the hour time limit. The course is wide, flat, and fast, featurin..

The Chignal Fete Trail Race, organized by Essex Trail Events, is a 6-mile self-navigation trail run held in Chignal St James, Chelmsford, Essex. Scheduled for June 7, 2025, the race features a new route each year and requires participants to follow a written route description provided on race day, w..

The Pathfinder March is an annual 46-mile (74 km) long-distance run or walk held in Cambridgeshire, England. Participants follow a circular route starting and finishing at RAF Wyton Airfield, passing through picturesque countryside and visiting four historic RAF Pathfinder Force airbases from World..

The Sundowner Marathon is a unique running event that takes participants through scenic routes including canals, waterfalls, vineyards, woodlands, and coastal saltmarshes. Scheduled for early June, the marathon begins on a summer evening and continues into the night, offering a distinctive experienc..

The Valley of the Owls Run is a scenic running event held in the picturesque village of Ousden, Suffolk, known for its historic roads and beautiful countryside. Participants can choose from various distances, including 5k, 10k, half marathon, full marathon, and ultra marathon, with a social out-and-..

The Tewinbury Trail 10K is a scenic trail running event held at Tewinbury Farm & Hotel, just north of Welwyn in Hertfordshire. The race features an undulating 10-kilometer course through a mix of terrain including single-track forest paths, open dirt tracks, grass, and woodland trails. The route is..

The Museum Quarter event, organized by Mid Essex Casuals, offers a unique self-navigation trail run of either 6.7 or 3.6 miles. Taking place at The Museum of Power in Langford, Maldon, the course primarily follows off-road footpaths, tracks, and field edges with some short road sections, making it u..

The Pitsea RC Crown to Crown 5k is an off-road trail race held at Westley Heights Country Park, Langdon Hills. The 5-kilometer course mainly follows bridleways, starting on Beeleigh Avenue, passing through Lee Chapel Lane, and looping around the Essex Wildlife Trust's Willow Park before finishing at..

The Norfolk Festival of Running is an inaugural timed running event held at the scenic Bawsey Country Park, located between the Queen Elizabeth Hospital and Gayton. Participants run laps of a 5.3 km course featuring gravel footpaths and grassy areas, with options to run for either four or six hours...

The Herts Hobble is a cross-country walking and running event held in Baldock, Hertfordshire, featuring circular routes of 26 or 18 miles through undulating countryside, grassland, fields, and woodland with panoramic views. The event starts and finishes at the Baldock Scout Hut, with no parking on-s..

The Run Sandringham 10K is a prominent running event held annually at the Royal Sandringham Estate in Norfolk, England. Scheduled for June 15, 2025, it offers a scenic 10K route that combines approximately 30% trail and 70% road surfaces, winding through the estate's grounds and surrounding countrys..

The Phoenix Striders Summer Series is a trail running event held at the Essex Wildlife Trust's Langdon Discovery Nature Park, part of Langdon Hills. The series consists of five rounds, with Round 3 taking place on June 17, 2025. The event features a 5k trail run for participants aged 12 and over, co..

A Midsummer Night's Stream is a self-navigation trail race organized by Essex Trail Events, taking place on June 18, 2025, at The Farmhouse Inn, Monk Street, Thaxted, Essex. The approximately 6-mile course requires participants to follow a written route description without any markings, marshals, or..

The Woodland Trail is a charity running and walking event held at Berkhamsted Castle, Hertfordshire. Participants can choose between 5- or 10-mile routes that wind through beautiful woodland and countryside, featuring fields, pathways, and some challenging, undulating terrain. The event offers a wel..

The Summer Solstice Challenge in Colchester is a unique running event held at the scenic Abberton Reservoir Visitors Centre. Taking place on the longest day of the year, participants run laps of just over 5 kilometers on off-road paths around the reservoir. The event lasts six hours, from 3 pm to 9..

The Dunstable Downs Half Marathon is a challenging off-road trail race held at the National Trust's Dunstable Downs estate in the Chiltern Hills, UK. Covering 21.2 km with over 450 meters of elevation, the course features rugged chalk ridge trails, ridgeline views, steep hills, exhilarating descents..

The Colworth Marathon Challenge is a unique running event held at the scenic Colworth Estate in North Bedfordshire, UK. It features three races over three consecutive days: a 5-mile multi-terrain run with family entertainment, an 8.1-mile cross-country trail race, and a 13.1-mile half marathon, coll..

The Zigzag Cock-A-Doodle Dawdle is a trail running event held at the scenic Hyde Hall Farm in Hertfordshire (SG9 0RU). Returning for its second year, the race offers multiple distance options including 5k, 10k, Half Marathon, Full Marathon, and Ultra Marathon, catering to runners of all levels. The..

Royston In Blue is a 5-kilometre fun run and walk held in Royston, Hertfordshire, on a two-lap trail course over Royston Heath. The undulating route offers a scenic and challenging experience for participants. The event supports the Teenage Cancer Trust, combining fitness with fundraising.Facilities..