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Half Marathons Found In & Near Hertfordshire

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Half Marathons In & Near Hertfordshire 2025 - 2026

The most comprehensive list of Half Marathons in and near Hertfordshire in 2025 - 2026. Find your perfect race!

Top Tip: Viewing this page in the default “Featured view” will show you all the Best Half Marathons in and around Hertfordshire. If you’re ready to set yourself a challenge right now then switching to “Bookable view” will show you those that can be booked instantly and securely through Find A Race. Guarantee your place today and get training :-)


Race Calendar: Half Marathons In & Near Hertfordshire

Run the Thames Bridges - half marathon

London
16 Feb 24 - 30 Apr 25
£17.00 - £24.00
5.0

Run the Ghost Tubes - Half Marathon & 10K

London
01 Oct 24 - 30 Apr 25
£14.00 - £17.00

Putney & Fulham Half Marathon

London, Greater London
06 Apr 25
£41.51
4.9

Richmond Park Half Marathon

London
13 Apr 25
£42.00 - £182.00
4.4

VICTORIA PARK 5K, 10K & HALF MARATHON

London
18 Apr 25
£28.00 - £162.00
4.7

ATW Stevenage Spring Half Marathon & 10k

Ridlins Athletics Track, Woodcock Rd, Shephall, Stevenage
21 Apr 25
£28.62 - £37.10

Lee Valley VeloPark 1 mile, 5k, 10k, 10 Mile & Half Marathon - June

London, Greater London
26 Apr 25
Free - £122.00
4.6

Richmond Park April 5k, 10k and Half Marathon Run

London, Greater London
27 Apr 25
£25.00 - £30.00
4.4

VICTORIA PARK 5K, 10K & HALF MARATHON

London
04 May 25
£28.00 - £162.00
4.7

Battersea Park Half Marathon

London
10 May 25
£37.00 - £162.00
4.8

Richmond Park May 5k,10k and Half Marathon

London, Greater London
11 May 25
£25.00 - £30.00
4.4

Farmmaggeddon

Hyde Hall Farm, Buntingford, SG9 0RU
24 May 25 - 25 May 25
£33.00 - £165.00

Richmond Park Half Marathon

London
25 May 25
£42.00 - £182.00
4.4

ATW Chiltern Half Marathon & 10K

Bellingdon, Chesham, HP5 2XU
25 May 25
£28.62 - £37.10

Circuit Du Sore Legs - part cinq

Wodson Park Sports Centre, Ware, Herts, SG12 0UQ
01 Jun 25
£25.00 - £37.50

The One in the Park - Richmond - June

Richmond
01 Jun 25
£26.00 - £35.00
5.0

Show me the Monet Marathons & Half Marathon

Milton Keynes, Buckinghamshire
07 Jun 25 - 08 Jun 25
£32.99 - £44.99

Richmond Park June 5k, 10k and Half Marathon

London, Greater London
08 Jun 25
£25.00 - £30.00
4.4

ATW St Albans Half Marathon #icelollyrun

Verulamium Park, St Albans AL1 2DL
08 Jun 25
£11.66 - £42.40

FINSBURY PARK 5K, 10K & HALF MARATHON

London
15 Jun 25
£30.00 - £142.00
4.3

LEE VALLEY VELOPARK 1 MILE, 5K, 10K, 10 MILE & HALF MARATHON

London, Greater London
21 Jun 25
Free - £122.00
4.6

Dunstable Downs Half Marathon

Dunstable, Bedfordshire
22 Jun 25
£32.00
4.8

Cock-a-doodle Dawdle - 10k, Half Marathon, Full Marathon & Ultra-Marathon

Hyde Hall Farm, Buntingford, SG9 0RU
28 Jun 25
£25.00 - £37.50

VICTORIA PARK 5K, 10K & HALF MARATHON

London
29 Jun 25
£28.00 - £162.00
4.7

Jaws 50th Anniversary Marathons & Half Marathon

Milton Keynes, Buckinghamshire
05 Jul 25
£39.99 - £49.99

Chiltern Ridge Half Marathon

Aylesbury, Buckinghamshire
06 Jul 25
£32.00
4.3

Richmond Park Half Marathon

London
06 Jul 25
£42.00 - £182.00
4.4

Live Aid 40th Anniversary Marathon Half Marathon & 50km

Milton Keynes, Buckinghamshire
12 Jul 25 - 13 Jul 25
£34.99 - £42.99

Hughenden Valley Half & 10K

High Wycombe, Buckinghamshire
19 Jul 25
£22.00 - £32.00
4.6

Richmond Park July 5k,10k and Half Marathon

London, Greater London
20 Jul 25
£22.00 - £25.00
4.4

Battersea Park Half Marathon

London
20 Jul 25
£37.00 - £162.00
4.8

Football League Original 12 Run

Milton Keynes, Buckinghamshire
02 Aug 25 - 03 Aug 25
£34.99 - £42.99

Richmond Park Half Marathon

London
10 Aug 25
£42.00 - £182.00
4.4

Richmond Park August 5k, 10k and Half Marathon

London, Greater London
17 Aug 25
£22.00 - £25.00
4.4

LEE VALLEY VELOPARK 1 MILE, 5K, 10K, 10 MILE & HALF MARATHON

London, Greater London
23 Aug 25
Free - £122.00
4.6

ATW Bedford Running Festival

Russell Park, The Embankment, Bedford MK40 3RH
06 Sep 25 - 07 Sep 25
£12.72 - £42.40

Richmond Park September 5k, 10k and Half Marathon

London, Greater London
07 Sep 25
£22.00 - £25.00
4.4

Coronation Scot Marathons & Half Marathon

Milton Keynes, Buckinghamshire
13 Sep 25 - 14 Sep 25
£34.99 - £42.99

Richmond Half Marathon @ Richmond RUNFEST

Richmond, Greater London
14 Sep 25
£35.00
5.0

Richmond Park Half Marathon

London
21 Sep 25
£42.00 - £182.00
4.4
Showing 1-40 of 70 results
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Related Pages on Find A Race

If you still haven’t found what you’re looking for here are a few suggestions: broaden your search and take a look at the South East or South West of England if you’re willing and able to travel a bit further. If you’re in the Hertfordshire area but fancy something a bit shorter then check out our Hertfordshire 10k Runs page. If you’re happy to travel or you want to build a race into a trip away then check out our UK-wide Half Marathons calendar and you can refine and filter your search from there.