Trail Running calendar near Letchworth Garden City 2025-2026

The Phoenix Denbies Marathon & Half Marathon is scheduled for June 21, 2025, at the Denbies Wine Estate in Surrey. Participants can enjoy a flexible event with up to 30 hours to complete their race, starting anytime between 8:00 am Saturday and late morning Sunday. The race features a flat, off-road..

The NoMad Ultra is an exciting running event featuring a 50-mile, 50km, and Team Relay Challenge, set to take place on June 21, 2025. Participants must possess intermediate navigation skills, as the route is partially marked and follows the scenic Derby Nomad trail in Derbyshire. The event includes..

The Castle Bytham 5K Chase is a scenic trail run held in Castle Bytham, Lincolnshire, as part of the popular Castle Bytham Midsummer Festival. The 5-kilometer course winds through open countryside, grassy trails, and rustic farm tracks, offering a picturesque and enjoyable running experience. The ev..

Beyond Trails London is an exciting trail and ultra running event set to take place in June 2025. Participants can choose between a 25km trail route or a challenging 55km ultra route, both of which explore hidden trails and iconic sights around London. The event emphasizes inclusivity, welcoming run..

Race to the King is an ultramarathon event held at West Dean Gardens, featuring challenging courses along the South Downs Way and Monarch’s Way. Participants can choose from three options: the Coastal 50k, a flat and scenic loop around Chichester Harbour with 500m elevation; the Castle 50k, a more d..

The Oxford Greenbelt 10km is a scenic running event set in the beautiful Oxfordshire countryside, scheduled for June 21, 2025. This race is part of a larger event that includes a 3km and a 1km run, catering to participants of various ages and abilities. The 10km course features a predominantly off-r..

The Woodland Trail is a running and walking event organized by DENS, offering participants the choice of 5 or 10-mile routes through scenic woodland and nature. This event aims to promote physical activity while supporting local communities facing homelessness and poverty. Participants can enjoy wel..

The Three Shires Way Ultra & Marathon is a running event taking place on June 21, 2025, through the scenic rural landscapes of Bucks, Beds, and Northants. Participants can choose between a 50-mile ultra or a marathon, both suitable for various experience levels. The routes are well-marked along brid..

P24 - The Longest Attended Day is a unique endurance running event held at Denbies Wine Estate in Dorking, Surrey. Participants run one mile every hour on the hour for 24 consecutive hours, covering a total of 24 miles. The course is an off-road trail through the scenic wine estate, designed to be a..

The Cotswold Way Ultra Challenge is a premier endurance event held in the scenic Cotswolds, starting and finishing at Cirencester basecamp. Participants can walk, jog, or run various distances including 100km, 75km, 50km, 25km, and a 10km option. The course features rolling hills, charming villages,..

The Greystones 10K Trail Run, organized by North Cotswolds Rotary in collaboration with Gloucestershire Wildlife Trust and Brio Retirement Living, takes place at Greystones Farm Nature Reserve in Bourton-on-the-Water. This scenic event features a mix of quiet country roads and undulating terrain, ma..

The Hawkhurst 10K & 5K is a vibrant running event held in the picturesque village of Hawkhurst, Kent. Designed for the whole family, it features a 10K, a 5K, and a free Junior Run, all set against a scenic multi-terrain backdrop of fields, trails, and roads. Participants can enjoy a friendly atmosph..

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 climbs, exhilarating descent..

The Midsummer Murder is a trail running event held in the scenic Hambleden Valley near Henley on Thames. Participants can choose between a challenging 10.4-mile course or a 14.3-mile half marathon, both featuring stunning multi-terrain routes with significant hills and off-road sections. The event o..

The Triffic Trail is an annual running event held in the scenic Trent Country Park, Enfield, London. The race features a 10 km senior trail course that includes woodland paths, grassy fields, hills, and some fast tarmac sections, all within the park's picturesque grounds. The event welcomes a wide r..

The Otter Challenge is a 6-hour running event held at Kingsbury Water Park near Sutton Coldfield, UK. Participants run multiple laps of a 3.3-mile flat course that loops around five ponds and a river, offering scenic views and varied terrain including grass, gravel, and short asphalt sections. Runne..

The Colworth Marathon Challenge is a three-day running event held at the Colworth Estate in North Bedfordshire, UK, from June 27 to 29, 2025. Participants can choose to run one, two, or all three races, which together total a marathon distance of 26.2 miles. The event features a 5-mile race on Frida..

The "Run the Seasons" event at Cowdray is a scenic running race set above Cowdray’s renowned polo fields, overlooking the Cowdray Ruins and the South Downs. Taking place in late June 2025, participants can choose from 5km, 10km, or dog-friendly canicross courses across the picturesque Cowdray Estate..

The Maverick Adidas Terrex X-Series South Downs is a trail running event held in Hampshire, UK. It offers multiple race distances including 51K, 42K, 21.5K, and 9K, catering to a range of abilities. Part of the challenging and scenic X Series, the event features tough and stunning courses that test..

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..