ATW
ATW Watford Half Marathon & 10K
Next Race: 01/02/2026
Cassiobury Park Avenue, Watford, Hertfordshire, WD18 7HF
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Welcome to the Watford Half Marathon, 10K & Fun Run, a thrilling event set to take place on Sunday, February 1st, 2026, 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!
IF YOU WANT 2000 REASONS TO ENTER THE WATFORD HALF MARATHON THEN YOU'LL BE PLEASED TO READ THAT ONE LUCKY COMPETITOR CHOSEN AT RANDOM WILL WIN A £2000 CASH SPOT PRIZE!
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.
The 10K, traffic-free run starts with the Half Marathon runners, heading out of the park. You'll experience the energy and adrenaline of running with over 2,000 runners, before splitting from the Half Marathon route and dropping down on to the Grand Union Canal. After a peaceful run along the tow path, you'll enjoy the solitude of a woodland path before tackling the final section past the event HQ to the applause of your cheer squad.
The Half Marathon will start in Cassiobury Park and follows fully closed roads, venturing into serene countryside 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.
This Half Marathon features the Hertfordshire Vets half marathon championships. To be eligible, you must have been born in Hertfordshire or been a resident for 9 months. Please state in your eligibility during the registration process.
Lead Car Escort: The event will be led by a lead car, ensuring a smooth and safe journey for all participants throughout the course.
Racecheck Gold Award: In 2023, the Watford Half Marathon proudly earned the prestigious Racecheck Gold Award.
Musical Entertainment: Enjoy the rhythm of the course with music, including the beats of our amazing drummer, adding excitement and motivation to your run!
Ideal for London Marathon Training: Whether you're gearing up for the London Marathon or seeking a challenging yet scenic route, the Watford Half Marathon is the perfect opportunity to test your skills and stamina.
Spot Prize: One lucky Half Marathon runner stands a chance to win an incredible spot prize of £2000! Will it be you?
Vibrant Event Village: Embrace the lively atmosphere at our event village, filled with activities, stalls, and a fantastic community spirit.
PB Pacers: We will have pacers in both the 10K and half marathon. When you get to the venue, please look out for our pacers with their flags and feel free to join then for the event.
Finish Line Goodies & Unique Medal: Celebrate your achievement with special finish line goodies and receive a one-of-a-kind medal as a testament to your accomplishment.
Free Photos: Capture the unforgettable moments with free professional photos, preserving memories of your incredible run.
Professional Commentator: Feel the excitement as a professional commentator cheers you on at the finish line, making your acheivement even more memorable.
Don't miss this opportunity to be part of an exhilarating event that combines fitness, fun, and community support. Register now for the Watford Half Marathon and Fun Run and be prepared for a day of thrilling runs, fantastic prizes, and a vibrant celebration of achievement! The Family Fun Run is a 1.8km run open to all ages (under 8’s must be accompanied by a full paying adult) and stays within Cassiobury Park.
Hertfordshire county championship prizes
Prizes available for the first 3 men's and first 3 women's Hertfordshire club teams.
Men's Team: First 4 finishers to score.
Womens Team: First 3 finishers to score.
There will be full results on the event chip timing website both overal and by category.
ATW Transfer & Refund Policy
At ATW, we understand that sometimes plans change. While we do not offer refunds or transfers to another person, we provide a hassle-free event transfer option for those unable to attend their booked event. If you are unable to participate in your scheduled event for any reason—including injury, illness, pregnancy, bereavement, or other unforeseen circumstances—you can transfer your entry to any future ATW event. There is no proof required, we trust you!
Even better news, transfers can be made all the way up to 48 hours before your original event date.
Event Organiser
ATW was established in 2011 by James Shipley. We have now become a national events company in the UK, specialising in Running, Triathlon, Duathlon, Aquathon, Cycling, Swimming and all permutation of swim-bike run events. With over 40,000 entries a year ATW has become a firm favourite amongst people who are determined to Dream, Believe and Achieve.
Location
Directions
There is no organised parking available at Cassiobury Park. Parking is plentiful in Watford City Centre and there are plenty of public transport options available, including both rail and bus.
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