Trail Running calendar near Hertfordshire 2025-2026

The Hampshire Hoppit is an exciting off-road trail running event held in the scenic North Hampshire Downs. Participants can choose from three distances: a full marathon (26.2 miles), a half marathon (13.1 miles), or a 10k race. The event features well-marked and marshalled routes that include sectio..

The Robertsbridge Midsummer 10K & 5K is a vibrant community running event set in the picturesque village of Robertsbridge, East Sussex. Scheduled for 2025, it features races for all abilities, including a Junior Run to inspire younger participants. The event promises a festive atmosphere with local..

The Longbridge 100 Backyard Ultra is an exciting inaugural running event that challenges participants to complete laps in a last-man/woman-standing format. Each lap, measuring at least 4.167 miles, must be started on the hour, every hour, with the race continuing until only one runner remains. Open..

The Denbies Marathon & Half Marathon, organized by Phoenix Running, will take place on June 21, 2025, at the scenic Denbies Wine Estate in Surrey. This unique event offers participants up to 30 hours to complete their race, with flexible start times available from Saturday morning to Sunday morning...

The Centaur 100 Mile Ultra, organized by Phoenix Running, is a unique endurance event designed for both seasoned ultra-runners and first-timers. Set in a scenic wine estate, participants have up to 30 hours to complete the 100-mile challenge on a flat, one-mile loop. The event fosters a supportive a..

The Three Shires Way Ultra & Marathon is a challenging running event set in the picturesque rural landscapes of Buckinghamshire, Bedfordshire, and Northamptonshire. Participants can choose between a 50-mile ultra and a marathon distance, both of which follow well-marked bridleway routes. The event i..

P24 - The Longest Attended Day is an endurance running event organized by Phoenix Running, taking place at Denbies Wine Estate in Dorking. Participants are challenged to run 1 mile on the hour, every hour, for 24 consecutive hours. The event features a flat, off-road trail and includes amenities suc..

The Castle Bytham 5k Chase is a fun trail run that takes place during the Castle Bytham Midsummer Festival, a popular two-day event in Lincolnshire. This inclusive race welcomes participants of all ages and abilities, encouraging both runners and walkers to join in. The festival features a variety o..

Race to the King is an exhilarating ultramarathon event set along the scenic South Downs Way and Monarch’s Way. Participants can choose from three challenges: the Coastal 50k, the Castle 50k, or the full 100k, which combines both loops. The event is designed to accommodate runners of all levels, fea..

Beyond London is a trail and ultra running event that invites participants to explore hidden trails in the capital. Offering two distances—25km and 55km—runners will experience a unique side of London, including iconic landmarks and scenic views along the Capital Ring footpath. The event is designed..

The Cotswold Way Ultra Challenge, taking place on June 21-22, 2025, offers participants a variety of distance options including 100 km, 75 km, 50 km, 25 km, and a 10 km route in Cirencester. This event invites adventurers to walk, jog, or run through the picturesque Cotswolds, starting from a baseca..

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 Midsummer Murder event offers a thrilling trail running experience in the picturesque Hambleden Valley, located between Henley on Thames and Marlow. Participants can choose between a challenging 10-mile course and a half marathon, with the latter measuring 14.3 miles. The terrain is predominantl..

The Hawkhurst 10K & 5K is a vibrant running event held in the picturesque village of Hawkhurst, Kent. Designed for the whole family, it features two race distances along with a free junior race, promoting community spirit and healthy competition. Participants can enjoy a scenic course that includes..

The Triffic Trail is an annual running event held in the scenic Trent Country Park, Enfield, London. It features a variety of courses, including a 10 km senior race, a 4.5 km junior race for participants under 18, and a 4.5 km fun run for those under 12. The event caters to all levels of runners, fr..

The Dunstable Downs Half Marathon is a challenging trail running event set in the picturesque National Trust's Dunstable Downs estate. Scheduled for June 22, 2025, this rugged half marathon features an entirely off-road route that offers stunning ridgeline views, steep descents, and demanding hills...

The Out Of The Blue Battle 10k & 5k is a captivating twilight running event held at the picturesque Ashburnham Place in East Sussex. Celebrating its 10th anniversary, the race features both 10k and 5k courses that traverse the stunning 220-acre estate. Participants can also join a Junior Run, making..

The Colworth Marathon Challenge is a unique running event held at the picturesque Colworth Estate in North Bedfordshire, UK. Participants can choose to enter one, two, or all three races, which together total 26.2 miles. The event features a 5-mile multi-terrain race, an 8.1-mile cross-country race,..

The Maverick X Series South Downs 2025 is an exciting trail running event set in the picturesque Queen Elizabeth Country Park. Participants can choose from four routes: Ultra (51 km), Long (42 km), Middle (21.5 km), and Short (9 km), catering to all skill levels. The event emphasizes a fun and chall..

The Cock-a-doodle Dawdle is an exciting running event returning for its second year at the picturesque Hyde Hall Farm in Hertfordshire. Participants can choose from various distances, including 5k, 10k, Half Marathon, Full Marathon, and Ultra Marathon, making it suitable for runners of all levels. T..