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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

VICTORIA PARK 5K, 10K & HALF MARATHON

London
13 Dec 25
£28.00 - £162.00
4.7

Richmond Park December 5k,10k and Half Marathon

London, Greater London
14 Dec 25
£25.00 - £30.00
4.4

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

London, Greater London
20 Dec 25
£10.00 - £122.00
4.6

Die Hard Christmas Jumpers Marathon & Half Marathon

Milton Keynes, Buckinghamshire
24 Dec 25
£36.99 - £44.99

FA Cup Run

Milton Keynes, Buckinghamshire
03 Jan 26 - 04 Jan 26
£36.99 - £42.99

Battersea Park Half Marathon

London
03 Jan 26
£40.00 - £182.00
4.7

Richmond Half Marathon Winter

Old Deer Park - Richmond Upon Thames TW9 2SF
15 Feb 26
£41.51

London Half & 10k Presented by TREK

London
01 Mar 26
£12.00 - £192.00

Battersea Park Half Marathon

London
07 Mar 26
£40.00 - £182.00
4.7

Moo-rathon, Calf and Hen K

Hyde Hall Farm, Buntingford, SG9 0RU
21 Mar 26
£29.00 - £36.00
5.0

Run the Wild Half Marathon - Spring

Tring, Hertfordshire
28 Mar 26
£55.00
5.0

The Enigma Easter Series

Milton Keynes, Buckinghamshire
03 Apr 26 - 04 Apr 26
£35.99 - £42.99
5.0

Putney & Fulham Half Marathon

London
05 Apr 26
£41.51
4.9

London Landmarks Half Marathon

London, Greater London
12 Apr 26
£35.00
4.5

Farmmageddon - 5k - 10k - Half - Full - Ultra - 100 Mile Challenge

Hyde Hall Farm, Buntingford, SG9 0RU
23 May 26 - 24 May 26
£35.00 - £165.00

Circuit du Sore Legs

Wodson Park Sports Centre, Ware, Herts, SG12 0UQ
31 May 26
£29.00 - £38.00

Show me the Manet Marathons & Half Marathon

Milton Keynes, Buckinghamshire
06 Jun 26 - 07 Jun 26
£34.99 - £42.99
4.5

Cock-a-doodle Dawdle - 5k,10k, Half Marathon, Full Marathon or Ultra Marathon

Hyde Hall Farm, Buntingford, SG9 0RU
27 Jun 26
£29.00 - £38.00

Hertfordshire Half Marathon & 10k

Knebworth, Hertfordshire
01 Nov 26
£36.00 - £192.00
4.5

Zodiac Run

02 Jan 25 - 31 Dec 25
£10.00

Offer

Thanks for booking a Running Bug event through findarace.com - 10% OFF

Richmond Park September 5k, 10k and Half Marathon

London, Greater London
07 Sep 25
£25.00 - £30.00
4.4

Run the Wild Half Marathon - Autumn

Tring, Hertfordshire
11 Oct 25
£55.00
5.0

Back to the Future 40th Anniversary Marathons & Half Marathons

Milton Keynes, Buckinghamshire
18 Oct 25 - 19 Oct 25
£38.99 - £44.99
Showing 41-63 of 63 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.