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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
Kingston Half Marathon
Kingston upon Thames, Surrey
Sun 22 Nov 26
£40.45
🚀Boosted
Running Tribe Races
Course 1,2,3 are at - Chalfont Park Sports Club Chalfont Park, SL9 0QA. Course 4,5,6,12 are at - Chalfont St. Peter Community Centre , SL9 9QX. Course - 7,8 are at - Amersham Cricket Club, Missenden Rd, Old Amersham, Bucks, HP7 0RN Course - 9 is at - Sarratt Village Hall, The Green, Sarratt,,Nr Rickmansworth, Herts WD3 6AS Course - 10,11 are at - Chesham & District Community Association, White Hill Centre, White Hill, Chesham, Bucks, HP5 1AG.
Sat 28 Nov 26
£40.00
Enigma Half Marathon Triple Crown
Milton Keynes, Buckinghamshire
Fri 12 Mar 27 - Sun 14 Mar 27
£31.99
PHOENIX - Spring Marathon & Half Marathon
Walton-on-Thames, Surrey
Sat 13 Mar 27
£33.50
Run the Wild Half Marathon - Spring
Tring, Hertfordshire
Sat 13 Mar 27
£55.00
5.0
Moo-rathon, Calf and Hen K
Hyde Hall Farm, Buntingford, SG9 0RU
Sat 13 Mar 27
£31.00 - £38.00
The Leaping Lion Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 13 Mar 27
£18.00 - £36.00
Battersea Park Half Marathon - Spring
Battersea Park next to the Bandstand - SW11 4NJ
Sun 14 Mar 27
£41.60
4.6
Hampton Court Palace Half Marathon
East Molesey, Surrey
Sun 14 Mar 27
£47.00
4.3
Midweek Chasing Numbers Mar 2027
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 19 Mar 27
£18.00 - £27.00
5.0
The Penguin Plod
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 20 Mar 27
£18.00 - £36.00
London Lea Valley Ultra
Welwyn Garden City, Hertfordshire
Sat 20 Mar 27
£42.00 - £69.00
Running Tribe Races
Course 1,2,3 are at - Chalfont Park Sports Club Chalfont Park, SL9 0QA. Course 4,5,6,12 are at - Chalfont St. Peter Community Centre , SL9 9QX. Course - 7,8 are at - Amersham Cricket Club, Missenden Rd, Old Amersham, Bucks, HP7 0RN Course - 9 is at - Sarratt Village Hall, The Green, Sarratt,,Nr Rickmansworth, Herts WD3 6AS Course - 10,11 are at - Chesham & District Community Association, White Hill Centre, White Hill, Chesham, Bucks, HP5 1AG.
Sat 20 Mar 27
£38.69 - £40.00
Surrey Hills Half Marathon
Guildford, Surrey
Sat 20 Mar 27
£29.00
5.0
Surrey Half Marathon, 5k & Junior Race
Woking, Surrey
Sun 21 Mar 27
£17.00 - £43.00
5.0
The Enigma Easter Series
Milton Keynes, Buckinghamshire
Fri 26 Mar 27 - Sat 27 Mar 27
£37.99 - £44.99
5.0
Victoria Park Half Marathon, 10k & 5k
London
Fri 26 Mar 27
£30.00 - £38.00
4.7
The Great British Easter Run - The Blue Beginning
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 26 Mar 27
£18.00 - £36.00
The Great British Easter Run - The Green Spark
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 27 Mar 27
£18.00 - £36.00
Battersea 5k, 10k & Half Marathon
London
Sat 27 Mar 27
£34.00 - £40.00
4.8
The Great British Easter Run - The Green Momentum
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sun 28 Mar 27
£18.00 - £36.00
Milton Keynes Festival of Running
Milton Keynes, Buckinghamshire
Sun 28 Mar 27
£28.00 - £40.00
Battersea Park Half Marathon - March 2027
Battersea Park next to the Bandstand - SW11 4NJ
Sun 28 Mar 27
£33.11
4.6
Richmond Park Half Marathon
Richmond, Surrey
Sun 28 Mar 27
£40.00
4.4
The Great British Easter Run - The Yellow Lift
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Mon 29 Mar 27
£18.00 - £36.00
The Great British Easter Run - The Orange Turning Point
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Tue 30 Mar 27
£18.00 - £32.00
The Great British Easter Run - The Coral Commitment
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Wed 31 Mar 27
£18.00 - £32.00
The Great British Easter Run - The Red Grit
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Thu 01 Apr 27
£18.00 - £32.00
The Great British Easter Run - The Purple Honour
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 02 Apr 27
£18.00 - £32.00
The Great British Easter Run - The Indigo Resolve
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 03 Apr 27
£18.00 - £36.00
Battersea Park 5k, 10k & Half Marathon
London
Sat 03 Apr 27
£36.00 - £42.00
Windsor Trail Half Marathon & 10k
Windsor, Berkshire
Sun 04 Apr 27
£37.00 - £45.00
Kew The Run: Half Marathon 2027
Richmond, Greater London
Sun 04 Apr 27
£30.00
4.4
Putney & Fulham Half Marathon
Barn Elms Sports Centre, Queen Elizabeth Walk, London, SW13 0DG
Sun 04 Apr 27
£41.51
4.9
The Great British Easter Run - The Gold Triumph
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sun 04 Apr 27
£18.00 - £36.00
Magna Carta Spring
Wraysbury Skiff & Punting Club Riverside Egham Surrey TW20 0AA
Sat 10 Apr 27
£39.48 - £60.71
Victoria Park Half Marathon, 10k & 5k
London
Sat 10 Apr 27
£30.00 - £38.00
4.7
Henley River Half Marathon, 10k & Junior Race
Henley-on-Thames, Oxfordshire
Sat 10 Apr 27
£12.00 - £37.00
4.6
FINSBURY PARK 5K, 10K & HALF MARATHON
London
Sun 11 Apr 27
£12.00 - £34.00
4.3
Lee Valley Velo Park
London, Greater London
Sat 24 Apr 27
£11.00 - £34.00
4.7
PHOENIX - NOT the London Marathon Run 2027
Walton-on-Thames, Surrey
Sun 25 Apr 27
£39.95
5.0
Victoria Park Half Marathon, 10k & 5k
London
Sat 01 May 27
£30.00 - £38.00
4.7
Showing 121-160 of 220 results