2 races

Event overview
An exhilarating event with thousands of runners that combines fitness, fun, and community support.
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 half marathon starts 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.
Highlights
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Lead car escort
The event will be led by a lead car, ensuring a smooth and safe journey for all participants throughout the course.
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RaceCheck Gold Award
In 2023, the Watford Half Marathon proudly earned the prestigious Racecheck Gold Award.
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Musical entertainment
Enjoy the rhythm of the course with music, including the beats of our amazing drummer, adding excitement and motivation to your run!
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Ideal 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.
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Spot prize
One lucky runner stands a chance to win an incredible spot prize of £2000! Will it be you?
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Vibrant event village
Embrace the lively atmosphere at our event village, filled with activities, stalls, and a fantastic community spirit.
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PB pacers
Join the Xempo pacers on the run as they assist you in reaching your desired personal best!
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Finish line goodies and unique medal
Celebrate your achievement with special finish line goodies and receive a one-of-a-kind medal as a testament to your accomplishment.
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Free photos
Capture the unforgettable moments with free professional photos, preserving memories of your incredible run.
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Professional commentator
Feel the excitement as a professional commentator cheers you on at the finish line, making your achievement even more memorable.
Event photos
Event video
- All fitness levels
- Event village
- Families
- Newcomers
- Spectators
- Traders at event
Herts Vets Half Marathon Champs
This event 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 your eligibility during the registration process.
Hertfordshire Vets County Championship Prizes
- Prizes available for the first 3 men's and first 3 women's Hertfordshire Clubs Teams
- Men's Team: First 4 finishers to score
- Women's Team: First 3 finishers to score
- Entertainment
- Music
- Park
- Toilets
Event HQ
Cassiobury Park Avenue
Shepherds Road
Watford
Hertfordshire
WD18 7HF
UK
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.
- Public transport links
- Recycling
- Sustainability policy
Here are the ways this event cares for the environment:
Summary
- Recycling bins
- Recycling gets separated from general waste
- Finish line water bottles made from recycled material
- Refill taps are provided so participants can bring their own bottle and fill up during the event
- The choice of paper cups at water stations
- Signage including course marking attached with reusable garden wire instead of plastic cable ties
- 'Dynamic bib assignment’ removes the need for envelopes, sticker labels and excess waste
- Bike racking is provided to promote cycling to the events
My first half marathon. Loved it. Jeff C
Superbly organised from bib collection to toilet queues, excellent communication pre the event, fabulously scenic route, amazing encouraging Marshall's AND FREE photos! I’ll definitely be back again a race that was very much enjoyed by myself and many others. Thank you. Faye R
The Watford half is a well organised race.. There are lots of marshals who are all happy and encouraging. Which always helps when tackling some of the hills! Plenty of local parking. Love the option at ATW to add a race t-shirt. The pacers are a great addition too. Petra W
I love the Watford Half, great organisation and a lovely undulating route. Kath E
Great event, great organisation and great marshals. Lovely route with some challenging hills. Clare H
Reviews thank to RaceCheck
Races at event
- Sun 2 Feb
- #1 of 2
Family Fun Run
09:30
All ages
£10-£12
- 1.8 km road running
- Sun 2 Feb
- #2 of 2
Half Marathon
10:00
Age 17 & over
£34-£36
- 13.1 miles road running + 751 ft ascent
