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Half Marathons Found In Watford
View all ↓Half Marathons in Watford 2026 - 2027
The most comprehensive list of Half Marathons in and near Watford in 2026 - 2027. Find your perfect race!
If you've been putting in miles along the Grand Union Canal towpath or through Cassiobury Park, you'll know that Watford is flatter than most of Hertfordshire, and that makes a difference at the half marathon distance. Thirteen miles on forgiving ground is a different proposition to thirteen miles with hills in the way, and Watford gives you a fair shot at a time you'll actually be pleased with. It's one of the better spots in the region if a PB is what you're after. If you'd rather build up first, 10k runs in Watford are a good place to start.
Have a look and pick one that works with your training. When the half marathon feels comfortable and you want to know what 26.2 feels like, marathons in Watford are the next step up.
Looking for more options?
Explore half marathons across the East of England with half marathons near Basildon, half marathons in Bedford or half marathons in Cambridge.
Race Calendar: Half Marathons Found In Watford
🚀Boosted
Running Tribe Races
Course 1,2,3 are at - Chalfont Park Sports Club Chalfont Park, SL9 0QA. Course 4,5,6 are at - Chalfont St. Peter Community Centre , SL9 9QX.
Sun 25 Oct 26
£38.69
PHOENIX - Lancaster Bomber Run
Walton-on-Thames, Surrey
Fri 06 Nov 26
£22.00 - £40.00
Enigma Fireworks Marathons & Half Marathons
Milton Keynes, Buckinghamshire
Fri 06 Nov 26 - Sat 07 Nov 26
£34.99 - £41.99
PHOENIX - Lest We Forget
Walton-on-Thames, Surrey
Sat 07 Nov 26
£22.00 - £39.95
5.0
Victoria Park Half Marathon, 10k & 5k
London
Sat 07 Nov 26
£30.00 - £38.00
4.7
Remembrance Run 2026 - South
Wraysbury Skiff and Punting Club, Riverside, Egham, TW20 0AE
Sun 08 Nov 26
£22.00 - £39.00
Windsor Trail Run
Windsor, Berkshire
Sun 08 Nov 26
£37.00 - £44.00
PHOENIX - Remembrance Day Marathon & Half Marathon
Walton-on-Thames, Surrey
Sun 08 Nov 26
£39.95
Run Dorney Lake Half Marathon, 10k & 5k - November
Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJ
Sun 08 Nov 26
£29.68 - £36.04
4.4
London 1.5k, 5k, 10k and Half Marathon MoRun
London
Sun 08 Nov 26
£12.00 - £30.00
5.0
Battersea Park 5k, 10k & Half Marathon
London
Sat 14 Nov 26
£36.00 - £42.00
4.7
RUN Battersea Park Half Marathon
Battersea Park next to the Bandstand - SW11 4NJ
Sun 15 Nov 26
£41.60
4.6
The Smurf Run
Wraysbury Skiff and Punting Club, Riverside, Egham, TW20 0AE
Sun 15 Nov 26
£18.00 - £35.00
Run For Your Life
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 21 Nov 26
£18.00 - £35.00
THAMES PATH TRAIL RUN
Windsor, Berkshire
Sat 21 Nov 26
£37.50 - £42.50
Kingston Half Marathon
Kingston upon Thames, Surrey
Sun 22 Nov 26
£40.45
WIMBLEDON 10K & HALF MARATHON
London
Sun 22 Nov 26
£34.00 - £38.00
4.8
Christmas Lights Half Marathon 2026
London, Greater London
Mon 23 Nov 26 - Mon 04 Jan 27
£21.00
The STAR Backyard PEASLAKE
Peaslake Community Hall, Peaslake, Surrey, GU5 9RR
Fri 27 Nov 26
£20.00 - £50.00
Running Tribe Races
Course 1,2,3 are at - Chalfont Park Sports Club Chalfont Park, SL9 0QA. Course 4,5,6 are at - Chalfont St. Peter Community Centre , SL9 9QX.
Sat 28 Nov 26
£38.69
PHOENIX - Riverside Marathon & Half Marathon
Walton-on-Thames, Surrey
Sat 28 Nov 26
£33.50
4.5
The London Riverside 1.5k, 10k and Half marathon MoRun
Richmond, Surrey
Sun 29 Nov 26
£12.00 - £30.00
RUN Victoria Park Half Marathon Autumn
Victoria Park, E9 5HT
Sun 29 Nov 26
£41.60
PHOENIX - Christmas Advent Run
Walton-on-Thames, Surrey
Sun 29 Nov 26
£22.00 - £39.95
The Donut Dash
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sun 29 Nov 26
£18.00 - £35.00
FINSBURY PARK 5K, 10K & HALF MARATHON
London
Sun 29 Nov 26
£30.00 - £34.00
4.3
Gremlins Christmas Half & Marathons
Milton Keynes, Buckinghamshire
Fri 04 Dec 26 - Sun 06 Dec 26
£37.99 - £43.99
The Snow Globe Gallop Bobble Hat Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 05 Dec 26
£18.00 - £41.82
Battersea Park 5k, 10k & Half Marathon
London
Sat 05 Dec 26
£36.00 - £42.00
4.7
CRYSTAL PALACE 5K 10K, HALF MARATHON & JUNIORS
London
Sun 06 Dec 26 - Sun 13 Dec 26
£12.00 - £37.00
4.7
The Christmas Jumper Jaunt
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 11 Dec 26
£18.00 - £35.00
Phoenix - Christmas Jumper FRIDAY Run
Walton-on-Thames, Surrey
Fri 11 Dec 26
£49.95
Running Tribe Races
Course 1,2,3 are at - Chalfont Park Sports Club Chalfont Park, SL9 0QA. Course 4,5,6 are at - Chalfont St. Peter Community Centre , SL9 9QX.
Sat 12 Dec 26
£38.69
Victoria Park Half Marathon, 10k & 5k
London
Sat 12 Dec 26
£30.00 - £38.00
4.7
Run Dorney Lake Half Marathon, 10k & 5k - December
Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJ
Sat 12 Dec 26
£29.68 - £36.04
4.4
Richmond Park Half Marathon
Richmond, Surrey
Sun 13 Dec 26
£40.00
4.4
Lee Valley Velo Park - December
London, Greater London
Sat 19 Dec 26
£12.00 - £142.00
4.7
Die Hard Christmas Jumpers Marathon & Half Marathon
Milton Keynes, Buckinghamshire
Wed 23 Dec 26
£36.99 - £42.99
4.0
Die Hard Christmas Jumpers Marathon & Half Marathon
Milton Keynes, Buckinghamshire
Thu 24 Dec 26
£37.99 - £43.99
4.0
Christmas Day Cracker Run 2026
The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
Fri 25 Dec 26
£18.00 - £88.88
Boxing Day Challenge
Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
Sat 26 Dec 26
£18.00 - £35.00
Showing 81-120 of 183 results