ATW Watford Half Marathon & 10K

Experience the thrill of the Watford Half Marathon, 10K & Fun Run on Sunday, February 7th, 2027. Nestled within Cassiobury Park's lush landscapes and vibrant community spirit, this long-standing event promises a memorable day for runners of all levels.
The fun begins early with a charming 1.8km Family Fun Run through the park grounds, offering parents and supporters an opportunity to cheer on their young athletes in a safe and scenic setting.
For those looking for more distance, the multi-terrain 10K starts alongside the Half Marathon participants before diverging at the 4k mark into peaceful towpaths along the Grand Union Canal. This section offers runners tranquil woodland trails and serene water views that enhance the overall experience. The final leg of the race sees you passing through event HQ with a cheering crowd to carry you across the finish line.
The Watford Half Marathon itself winds its way from Cassiobury Park into traffic-free country lanes, offering stunning vistas as it passes through picturesque Bucks Hill and Commonwood Common. Runners will loop back to the park after traversing Chandlers Cross, creating an engaging route with a mix of terrain that challenges runners while showcasing Hertfordshire's natural beauty.
In addition to its scenic routes, this event is notable for hosting the prestigious Hertfordshire Senior Half Marathon Championships, open only to those born in or having lived in Hertfordshire for at least nine months. Participants can indicate their eligibility during registration.
The Watford Half Marathon has earned a Racecheck Gold Award for exceptional participant satisfaction and features live music along the course with an energetic drummer to keep you motivated throughout your run. The event also offers PB pacers, free professional photos, and unique finish line goodies including one-of-a-kind medals commemorating your achievement.
With limited entries available in 2026, securing a spot for this year's race is crucial if you want the chance at winning an impressive £2000 cash prize awarded to one lucky participant chosen randomly. The event also supports Alzheimer’s Research UK by encouraging runners to raise funds and make every stride count towards finding a cure.
Join us in Watford on February 7th for a day filled with community spirit, scenic routes, and unforgettable moments at the vibrant event village. Register now to be part of this exhilarating race that combines fitness challenges with a celebration of achievement and camaraderie.