Trail Running calendar near Mortimer Common 2025-2026

The Black Bull 15 Trail Runs, held in Chelmsford, United Kingdom, offer two main distances: a competitive 15-mile trail run and a non-competitive 15 km run/jog/walk. Starting and finishing at the Black Bull pub garden, the 15-mile course loops through local countryside and country roads, providing v..

The Keynsham Dandy is an off-road running race organized by Town and Country Harriers (TACH) in the Bristol area. The event covers approximately 12.5 miles, starting in Keynsham and featuring a scenic route that includes the revival of the Compton Dando section, complete with a stream crossing. The..

The Giddy Horse Backyard event is a unique running experience taking place at Chepstow Racecourse in Piercefield Park. Scheduled for October 25, 2025, it features various race formats including 8-hour, 12-hour, 24-hour, and relay options, all set on a scenic 4.167-mile loop that combines woodland, p..

The Worcester Ring Run is a 23-mile running event taking place around Worcester and Droitwich, featuring a scenic clockwise loop along the Droitwich and Worcester & Birmingham Canals. The mostly traffic-free course passes landmarks such as Diglis Bridge, Worcester Racecourse, and riverside paths, wi..

The Beachy Head Marathon is one of the UK's largest off-road marathons, held in Eastbourne and featuring a scenic, challenging route through the South Downs National Park. Formerly known as the Seven Sisters Marathon, it offers multiple race distances including a full marathon, an ultramarathon (com..

The Thames Trail Ultra is a challenging 47-mile point-to-point ultra-marathon along England’s longest river, the Thames. Starting near Oxford in Iffley and finishing in Henley-on-Thames, the course follows the scenic Thames Path and Ridgeway National Trails, featuring a mix of cross-country trails,..

Running Tribe Races take place in Chalfont St Peter, Buckinghamshire, with two main locations: Chalfont Park Sports Club and Chalfont St. Peter Community Centre. The event offers flexible distances on looped courses ranging from 7k up to ultra marathon distances (30 to 40 miles).Participants can cho..

The Epping Forest Wildwood Trail Series offers a scenic half marathon and 10K trail run set in the heart of Epping Forest near London. Scheduled for October 25, 2025, the event showcases the vibrant autumn colors and ancient woodland, providing runners with a mix of well-maintained paths and natural..

The Blackwater Marathon is an annual event held at Drapers Farm Sports Club in Heybridge, Essex. Celebrating its 25th edition in 2025, the marathon features a circular route on the north side of the River Blackwater estuary, combining cross country footpaths and sections of seawall. Participants can..

The Thames Path Trail Run is a scenic trail running event held at Windsor Racecourse, winding along the picturesque Thames River and surrounding countryside. Participants can choose between two distances: 21km with 66m elevation gain or 16km with 50m elevation gain. The course is well-marked with pi..

The Giddy Horse Half Marathon, Trail, & Steeplechase Obstacle Course Races is an exciting running event taking place on October 26, 2025, at Chepstow Racecourse in the UK. Participants can choose from various race options, including a half marathon, 8-mile and 4-mile trail races, and steeplechase ob..

The Stort30 Ultra is a classic 30-mile out-and-back ultra running event held in Hertfordshire, starting at the Hockerill Sports and Social Club in Bishops Stortford. The course runs alongside a scenic river, offering beautiful scenery and a flat, fast route ideal for both seasoned and first-time ult..

The Irchester Spooktacular is a Halloween-themed night-time running event held at Irchester Country Park. It features two distances: a 5k race and a 2k Family Fun Run, both set on fully marked woodland trails and tracks. Participants are encouraged to wear fancy dress, with prizes awarded for the be..

The Pre Halloween Coffee and Cream 10k is a night trail running event organized by Multisport-Management. Scheduled for October 30, 2025, this 10-kilometer race offers participants a unique nighttime trail experience just before Halloween. The event is designed to combine the thrill of trail running..

The Plough and Harroween is a 5-mile night trail run held in Friston Forest, Seaford, East Sussex. This self-navigated event follows a GPX route in reverse of the Friston Forest 5, traversing countryside, forest, farm tracks, and downlands with many hills. Participants are encouraged to wear Hallowe..

The Guided Run - Petersfield 10k will take place in Petersfield on Saturday 1 November 2025. You can run 10 kilometers.

The Brewery Trail Run is a 10km (6 miles) trail running event held in the scenic Chiltern Hills near Tring, just 40 minutes northwest of London. Suitable for all abilities, the course features trails with some hills, with walking encouraged on steep sections. After the run, participants enjoy a priv..

The Fireworks 50 is a 50-mile running event organized by Zig Zag Running, held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. Now in its fourth year, this unique race takes place on a traffic-free athletics track, offering runners a safe and controlled environment. Limited to 50 pa..

The Chiltern Ridge Winter 50K is an autumn/winter trail ultra marathon held in the Chilterns, starting and finishing at Berkhamsted Cricket Club. Covering 50 kilometers with over 800 meters of elevation, the race follows a specially designed looped course featuring woodland trails, scenic views, and..

The ZigZag Catherine Wheel Canter is a unique running event held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. Participants can choose from various distances including 5k, 10k, half marathon, full marathon, 50k ultra, or a 6-hour challenge, all run on a traffic-free 400-meter athl..