Trail Running calendar near Welwyn 2025-2026

The Frieth Hilly 5km and 10km runs are exciting mixed-terrain races set in the picturesque Chiltern Hills, located between Marlow and Henley-on-Thames. Participants can expect a challenging course that features winding woodland paths and scenic country roads, offering stunning views throughout the r..

The Southend Pier Marathon, held in Southend On Sea, offers a unique running experience as a full marathon conducted entirely on the world's longest pleasure pier, stretching 1.34 miles over the sea. This event, organized by Sussex Trail Events, is a world first, providing runners the rare opportuni..

The South Downs Way Ultra Run is a 30-mile trail run starting and finishing at Harting Down in West Sussex. The route showcases some of the best sections of the South Downs Way and nearby areas, including Beacon Hill, Cocking Down, and the ancient woodlands of Kingley Vale, known for its veteran yew..

The North Chilterns 50K is an ultra marathon trail race held in the scenic countryside east of Luton, UK. Starting and finishing at the picturesque Putteridge Bury Estate, the 50-kilometer course features ridgeline trails with stunning views from Warden Hill, Barton, and Pegsdon Hills. The route is..

The Cowdray Autumn Trail Run, held on the Cowdray Estate in West Sussex, offers three challenging distances: 5km, 10km, and 10 miles. The courses feature undulating terrain with steep uphill and downhill sections, including gravel, sand, mud, and rocky paths. Runners traverse bridleways, footpaths,..

The Ridgeway Run, organized by Tring Running Club, is a challenging 15-kilometre (9.3 miles) trail race set in the scenic Chiltern Hills near Tring, UK. The course starts on the outskirts of Tring, ascending through the Ashridge Estate, passing landmarks like the Bridgewater Monument, and includes s..

Aliens V's Trail Runners Daylight Trail is a unique running event held near Rendlesham Forest, a popular spot for runners, mountain bikers, and UFO enthusiasts. Scheduled for October 12, 2025, the event offers both a full marathon and a half marathon, featuring narrative trails without traditional m..

The Buckingham 10K is a scenic running event held in Buckingham Town Centre, featuring a 10-kilometer multi-terrain route. The course starts in the town center and passes through Stowe Avenue, the Stowe National Trust Gardens, and surrounding farmland, offering an undulating profile through both urb..

The Gatliff Marathon is an annual challenge event held at Edenbridge Cricket Club in Kent, UK, featuring 25km and 50km distances. Participants can walk, jog, or run mostly on footpaths and tracks through the scenic countryside of Kent, Surrey, and Sussex. The course varies each year, with route deta..

The 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 forms a cross shape, consisting of four 25-mile out-and-back sections along the Ridgeway and Thames Path National Trails. Runners face a mix of 2..

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 challenging 2km junior run, all set on traffic-free woodland trails beneath a majestic pine canopy. The course offers pictures..

The Black Bull 15 Trail Runs, held in Chelmsford, UK, is an annual charity trail running event featuring two distances: a competitive 15-mile trail run and a non-competitive 15km run/jog/walk. The course offers a scenic loop through local countryside and country roads, starting and finishing in the..

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 varied terrain suitable for both road runners and trail enthusiasts. Participants enjoy..

The Viper 5 Mile Trail Run, organized by Multisport-Management, takes place in Ingatestone, United Kingdom. This unique event features a 5-mile loop course through the countryside on public rights of way, offering runners a scenic trail experience. The run is held in the evening, adding the challeng..

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 at the YMCA Y Centre in Henley-on-Thames, the course follows the scenic Thames Path and Ridgeway National Trails. Runners experience a..

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..

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 participants choosing their distance on race day.The courses ar..

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 seawall sections. Participants can ch..

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