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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

🚀Boosted

The Hurt

Guildford, Surrey
Sat 10 Oct 26
£31.00 - £35.00
🚀Boosted

Windsor Dorney Lakeside Half Marathon

Dorney Lake, Off Court Lane, Windsor, Berks, SL4 6QP
Sun 18 Oct 26
£36.21
🚀Boosted

RUN Battersea Park Half Marathon

Battersea Park next to the Bandstand - SW11 4NJ
Sun 15 Nov 26
£41.60
4.6
🚀Boosted

The Milton Keynes 1.5k, 5k & 10k MoRun

Milton Keynes
Sun 29 Nov 26
£15.00 - £30.00
5.0

Run the Thames Bridges - half marathon

London
Fri 16 Feb 24 - Thu 31 Dec 26
£17.00 - £24.00
5.0

Run the Ghost Tubes - Half Marathon & 10K

London
Tue 01 Oct 24 - Thu 31 Dec 26
£14.00 - £17.00
4.3

Henry VIII's Wives Half Marathon

London
Sun 01 Feb 26 - Thu 31 Dec 26
£17.00

Flying Scotsman Marathons & Half Marathons

Milton Keynes, Buckinghamshire
Sat 12 Sep 26 - Sun 13 Sep 26
£34.99 - £39.99

Chas Avis Harvest Trail

Royston, Hertfordshire
Sun 20 Sep 26
£21.00

Richmond Park Half Marathon

Richmond, Surrey
Sun 20 Sep 26
£40.00
4.4

Battersea Park 5k, 10k & Half Marathon

London
Sat 26 Sep 26
£36.00 - £42.00
4.8

Clapham Common 5k, 10k & Half Marathon

London
Sun 27 Sep 26
£32.00 - £34.00

Wizz Air Ealing Half Marathon 2026

London
Sun 27 Sep 26
£55.89 - £57.89

Victoria Park Half Marathon, 10k & 5k

London
Sat 03 Oct 26
£30.00 - £38.00
4.7

Thames Meander Autumn

Richmond, Greater London
Sun 04 Oct 26
£37.36 - £58.59
4.1

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
£27.00 - £37.00

Run the Wild Half Marathon - Autumn

Tring, Hertfordshire
Sat 10 Oct 26
£59.00
5.0

PHOENIX BEDFORDSHIRE Freaky Phoenix Friday

Biggleswade, Bedfordshire
Fri 16 Oct 26
£22.00

Lee Valley Velo Park - October

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

PHOENIX BEDFORDSHIRE Skull Runner

Biggleswade, Bedfordshire
Sat 17 Oct 26
£22.00 - £39.95

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

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.
Sun 25 Oct 26
£40.00

Wendover Woods Marathon, Half Marathon & 10k

Wendover Woods, Upper Icknield Way, Aston Clinton, HP22 5NQ
Sun 01 Nov 26
£7.68 - £50.00
4.6

Richmond Half Marathon Autumn

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

Run London Victoria Park Half/10k/5k

London
Sun 01 Nov 26
£15.00 - £30.00
1.1

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
£36.99 - £44.99

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
£15.00 - £35.00
5.0

Battersea Park 5k, 10k & Half Marathon

London
Sat 14 Nov 26
£36.00 - £42.00
4.7

RUN Battersea Park Half Marathon

Battersea Park next to the Bandstand - SW11 4NJ
Sun 15 Nov 26
£41.60
4.6

Christmas Lights Half Marathon 2026

London, Greater London
Mon 23 Nov 26 - Mon 04 Jan 27
£21.00

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 28 Nov 26
£40.00

RUN Victoria Park Half Marathon Autumn

Victoria Park, E9 5HT
Sun 29 Nov 26
£41.60

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
£39.99 - £44.99

Battersea Park 5k, 10k & Half Marathon

London
Sat 05 Dec 26
£36.00 - £42.00
4.7

London Running Festival December

London
Sun 06 Dec 26
£30.00 - £34.00

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 12 Dec 26
£40.00

Battersleigh 5k, 10k & Half Marathon

London
Sat 12 Dec 26
£36.00 - £40.00

Victoria Park Half Marathon, 10k & 5k

London
Sat 12 Dec 26
£30.00 - £38.00
4.7
Showing 1-40 of 116 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.

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