Trail Running calendar near Hemel Hempstead 2025-2026

The Centurion Autumn 100 is a 100-mile continuous trail race held in the twin villages of Goring and Streatley on the River Thames in South East England. The course features four 25-mile out-and-back sections forming a cross shape, utilizing parts of the Ridgeway and Thames Path National Trails. Run..

The High Lodge Half Marathon – Autumn is a scenic 13.1-mile trail race held in Thetford Forest, Brandon, UK. The circular course features a mix of hard-packed sand, grassy footpaths, and forest trails, offering a multi-terrain challenge suitable for both road runners and trail enthusiasts. Participa..

The Bedgebury Forest Half Marathon & 10K is a scenic trail running event held at Bedgebury National Pinetum & Forest in Kent. The race features a half marathon, a 10k, and a junior 2km run, all set on woodland trails beneath a majestic pine canopy. The course is traffic-free and offers a challenging..

The Viper 5 Mile Trail Run (Autumn edition) is a night-time trail running event held in Ingatestone, United Kingdom. Participants run a 5-mile loop around the countryside on public rights of way, following the same route as the spring event but in the dark. The course requires runners to be self-suf..

Running Tribe Races take place in Chalfont St Peter, Buckinghamshire, at two locations: Chalfont Park Sports Club and Chalfont St. Peter Community Centre. The event offers flexible distances ranging from 7k up to an ultra marathon, with looped courses of 7k, 10k, or 10.8k that allow participants to..

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. Runners navigate a varied course featuring well-maintained paths,..

The Beachy Head Marathon is one of the UK's largest off-road marathons, held in the scenic South Downs National Park near Eastbourne. Formerly known as the Seven Sisters Marathon, it offers a challenging and picturesque route starting and finishing at Eastbourne Seafront along the South Downs Way. T..

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,..

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 seawall sections. Participants can ch..

The Thames Path Trail Run takes place at Windsor Racecourse, offering scenic routes along the picturesque Thames River with stunning views of the river and countryside. Participants can choose between two distances: 21km and 16km, both featuring gentle elevation gains (+66m and +50m respectively). T..

The Stort30 Ultra is a scenic 30-mile ultra marathon held on the border of Hertfordshire and Essex, starting and finishing at the Hockerill Sports and Social Club in Bishop's Stortford. The course follows a flat, fast out-and-back route along the River Stort and Lee navigation, primarily on grassy t..

The Pumpkin Plod is a multi-terrain running event held at Ferry Meadows, part of the expansive Nene Park near Peterborough. Participants can choose between a 6-hour or 4-hour timed challenge, running laps of a 5.3 km course featuring gravel footpaths and grass areas. The event suits all levels, from..

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 Plough and Harroween is a 5-mile night trail run held in Litlington, East Sussex, starting and finishing at The Plough & Harrow pub. The self-navigated course, run in reverse of the Friston Forest 5 route, traverses countryside terrain including forest, farm tracks, and downlands. Participants m..

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

Brewery Trail Run is a 6-mile (10 km) trail run through the Chiltern Hills, starting from The Home Office in Tring, about 40 minutes northwest of London. The route traverses scenic trails with some hills, and participants are grouped by ability and may walk steep sections, making it suitable for all..

The Winter Warrior 50km Ultra is a trail ultramarathon held annually in Norfolk, England, starting in Trowse, Norwich, and finishing in Diss. Following the scenic and well-marked Boudicca Way, the course passes through several villages including Caistor St. Edmund and Pulham Market.This winter event..

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 a scenic autumn/winter trail running event held in Berkhamsted, UK. This ultra-distance race covers a challenging 50 kilometers with over 800 meters of elevation, following a single-loop course through the heart of the Chilterns. Runners traverse woodland trails, Ber..

Brutal - Halloween @ Hogmoor is an annual evening running event held at Hogmoor, a former military area now used for recreation. The event features a kids race with a 3.3K loop, and for participants aged 13 and over, options to run 6.6K (2 laps) or 10K (3 laps). The course includes short sandy hills..