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Half Marathons Found In Watford

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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

The Snow Globe Gallop Bobble Hat Run

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 05 Dec 26
£23.00 - £41.82

Battersea Park 5k, 10k & Half Marathon

London
Sat 05 Dec 26
£40.00
4.7

CRYSTAL PALACE 5K 10K, HALF MARATHON & JUNIORS

London
Sun 06 Dec 26 - Sun 13 Dec 26
£12.00 - £36.00
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 - £30.00

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
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

Year End Time Turner 2026

The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
Sun 27 Dec 26
£18.00 - £35.00
4.0

PHOENIX - Year End Marathon & Half Marathon

Walton-on-Thames, Surrey
Mon 28 Dec 26
£33.50
5.0

PHOENIX - Frozen Phoenix

Walton-on-Thames, Surrey
Tue 29 Dec 26
£27.00 - £40.00

PHOENIX - Winter Runderland

Walton-on-Thames, Surrey
Wed 30 Dec 26
£27.00 - £40.00
4.0

New Years Day Run 2027

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 01 Jan 27
£18.00 - £35.00
5.0

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 02 Jan 27
£37.00

Winter Enigma Marathon & Half Marathon

Milton Keynes
Sat 02 Jan 27 - Sun 03 Jan 27
£36.99 - £43.99

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 03 Jan 27
£37.00

Battersea 5k, 10k & Half Marathon

London
Sat 09 Jan 27
£34.00 - £40.00

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 09 Jan 27
£38.69

PHOENIX - Doughnut Dash

Walton-on-Thames, Surrey
Sun 10 Jan 27
£39.95
5.0

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 10 Jan 27
£38.69

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 16 Jan 27
£38.69

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 17 Jan 27
£38.69

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 24 Jan 27
£38.69

Battersea Park Half Marathon - Winter

Battersea Park next to the Bandstand - SW11 4NJ
Sun 31 Jan 27
£41.60
4.6

CRYSTAL PALACE 5K 10K, HALF MARATHON & JUNIORS

London, Greater London
Sun 31 Jan 27
£12.00 - £36.00
4.7

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 31 Jan 27
£38.69

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 06 Feb 27
£37.00

ATW Watford Half Marathon & 10K

Cassiobury Park Avenue, Watford, Hertfordshire, WD18 7HF
Sun 07 Feb 27
£14.84 - £47.70
5.0

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 07 Feb 27
£37.00

Battersea 5k, 10k & Half Marathon

London
Sat 13 Feb 27
£34.00 - £40.00

Hampton Court Half Marathon 2027

Thames Ditton, Surrey
Sun 14 Feb 27
£39.50
4.4

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 14 Feb 27
£38.69

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 20 Feb 27
£38.69

Dartford Half Marathon, 10k & Junior

Dartford, Kent
Sun 21 Feb 27
£12.00 - £42.00
4.5

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 21 Feb 27
£38.69
Showing 121-160 of 191 results
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