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Half Marathons Found In & Near Hertfordshire

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Half Marathons In & Near Hertfordshire 2026 - 2027

The most comprehensive list of Half Marathons in and near Hertfordshire in 2026 - 2027. 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

Flying Scotsman Marathons & Half Marathons

Milton Keynes, Buckinghamshire
Sat 12 Sep 26 - Sun 13 Sep 26
£34.99 - £41.99

Richmond Park Half Marathon

Richmond, Surrey
Sun 20 Sep 26
£40.00
4.4

Battersea Park 10k & Half Marathon

London
Sat 26 Sep 26
£40.00

Clapham Common 5k, 10k & Half Marathon

London
Sun 27 Sep 26
£32.00 - £34.00

Ealing Half Marathon 2026

London
Sun 27 Sep 26
£45.37 - £47.37

Victoria Park Half Marathon, 10k & 5k

London
Sat 03 Oct 26
£30.00 - £38.00
4.7

ATW Welwyn Half Marathon & 10k

Gosling Sports Park, Stanborough Road, Welwyn Garden City, Hertfordshire, AL8 6XE
Sun 04 Oct 26
£34.98 - £43.46
5.0

Epping Forest Half Marathon & 10K Wildwood Trail Series

London
Sat 10 Oct 26
£24.00 - £34.00

Run the Wild Half Marathon - Autumn

Tring, Hertfordshire
Sat 10 Oct 26
£55.00
5.0

Lee Valley Velo Park - October

London, Greater London
Sat 17 Oct 26 - Sat 24 Oct 26
£12.00 - £34.00
4.7

Top Gun 40th Anniversary Marathons & Half Marathons

Milton Keynes, Buckinghamshire
Sat 17 Oct 26 - Sun 18 Oct 26
£37.99 - £43.99

Richmond Park Half Marathon

Richmond, Surrey
Sun 18 Oct 26
£40.00
4.4

BATTERSEA PARK RUNNING FESTIVAL

London
Sat 24 Oct 26
£12.00 - £47.00
4.5

Wendover Woods Marathon, Half Marathon & 10k

Wendover Woods, Upper Icknield Way, Aston Clinton, HP22 5NQ
Sun 01 Nov 26
£7.68 - £50.00
4.8

Richmond Half Marathon Autumn

Old Deer Park - Richmond Upon Thames TW9 2SF
Sun 01 Nov 26
£41.51

ATW Bedford 10k & Half Marathon

Russell Park, Bedford, Bedfordshire, MK40 3RH
Sun 01 Nov 26
£34.98 - £43.46
5.0

Hertfordshire Half Marathon & 10k

Knebworth, Hertfordshire
Sun 01 Nov 26
£40.00 - £47.00
4.5

Enigma Fireworks Marathons & Half Marathons

Milton Keynes, Buckinghamshire
Fri 06 Nov 26 - Sat 07 Nov 26
£34.99 - £41.99

Victoria Park Half Marathon, 10k & 5k

London
Sat 07 Nov 26
£30.00 - £38.00
4.7

London 1.5k, 5k, 10k and Half Marathon MoRun

London
Sun 08 Nov 26
£10.00 - £27.00
5.0

Battersea Park Half Marathon

London
Sat 14 Nov 26
£40.00
4.7

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

Battersea Park Half Marathon

London
Sat 05 Dec 26
£40.00
4.7

Victoria Park Half Marathon, 10k & 5k

London
Sat 12 Dec 26
£30.00 - £38.00
4.7

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

Winter Enigma Marathon & Half Marathon

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

Battersea 5k, 10k & Half Marathon

London
Sat 09 Jan 27
£34.00 - £40.00

Battersea 5k, 10k & Half Marathon

London
Sat 13 Feb 27
£34.00 - £40.00

Moo-rathon, Calf and Hen K

Hyde Hall Farm, Buntingford, SG9 0RU
Sat 13 Mar 27
£29.00 - £38.00

The Enigma Easter Series

Milton Keynes, Buckinghamshire
Fri 26 Mar 27 - Sat 27 Mar 27
£37.99 - £44.99
5.0

Battersea 5k, 10k & Half Marathon

London
Sat 27 Mar 27
£34.00 - £40.00

Star Wars 50th Anniversary Marathon & Half Marathon

Milton Keynes, Buckinghamshire
Sat 05 Jun 27
£39.99 - £44.99

Star Wars 50th Anniversary Marathon & Half Marathon

Milton Keynes, Buckinghamshire
Sun 06 Jun 27
£39.99 - £44.99

Deja Vu Half Marathon

Milton Keynes, Buckinghamshire
Fri 24 Apr 26
£32.99

Global Running Day

Wed 03 Jun 26
£8.00

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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.

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