ATW Watford Half Marathon & 10K
Welcome to the Watford Half Marathon, 10K & Fun Run, a thrilling event set to take place on Sunday, February 7th, 2027, starting in the picturesque Cassiobury Park! Join us for a day of running, community spirit, and exciting experiences that has been taking place for over 40 years!
£2000 CASH SPOT PRIZE! One lucky competitor chosen at random in the Half Marathon will win a £2000 cash spot prize!
Fun Run (1.8km)
The day kicks off with a 1.8km Fun Run around the Park, giving parents and supporters a great chance to cheer on their little athletes. Under 8s must be accompanied by a full paying adult.
10K
The multi-terrain 10k starts off alongside the Half-Marathon participants, leaving the park and heading on to traffic-free roads. The route diverges around the 4k mark, guiding you down to the peaceful towpath of the Grand Union Canal. For the next 3k, enjoy the calm of the water's edge before immersing yourself in the quiet beauty of woodland trails. The final stretch takes you past event HQ, where cheers from your supporters will carry you across the finish line. The 10k has no cut-off time - so you can run, jog or walk at your own pace. Entries to the 10K are limited, and it sold out in 2026, so don't miss out!
Half Marathon
The Half Marathon will start in Cassiobury Park and follows fully closed roads, venturing into the country lanes behind the Grove Hotel and Golf Course. Runners will pass through Bucks Hill, Commonwood Common, and Chandlers Cross before looping back to the stunning Cassiobury Park. There is a cut off of 2 hours 45 minutes to the 11 mile point for the Half Marathon, as the roads will be reopening.
This Half Marathon features the Hertfordshire Senior half marathon championships. To be eligible, you must have been born in Hertfordshire or been a resident for 9 months. Please state your eligibility during the registration process.
Event Features:
- Lead Car & Cycle Escort: Ensuring a smooth and safe journey for all participants.
- Racecheck Gold Award: This event has proudly earned the 'Racecheck Gold Award'.
- Musical Entertainment: Enjoy the rhythm of the course with music, including the beats of our amazing drummer.
- Ideal for London Marathon Training: A challenging yet scenic route perfect for training.
- Spot Prize: One lucky Half Marathon runner stands a chance to win an incredible spot prize of £2000!
- Vibrant Event Village: Embrace the lively atmosphere with activities, stalls, and a fantastic community spirit.
- PB Pacers: Pacers will be available for both the 10K and half marathon.
- Finish Line Goodies & Unique Medal: Celebrate your achievement with special goodies and a one-of-a-kind medal.
- Free Photos: Capture unforgettable moments with free professional photos.
- Professional Commentator: Setting you off at the Start and cheering you on at the Finish line.
The event partners with Alzheimer's Research UK and offers transfer options to future ATW events up to 48 hours before the race. Visit the organization's website for the most recent information.
