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Half Marathons Found In & Near London

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Half Marathons In & Near London 2026 - 2027

The London running scene has never been more alive. Running crews, clubs and a ton of races: and half marathons are one of the most popular distance events.

The findarace.com calendar lists over 100 half marathon races in and around London every year. Check out our comprehensive 2026 - 2027 London half marathon race calendar below: you’ll find a race that’s perfect for you.

London's half marathon courses combine the capital's flat riverside paths with iconic park loops, making 13.1 miles feel surprisingly achievable. From Greenwich to Regent's Park, the even terrain lets you focus on pacing rather than battling hills, whilst landmarks along the Thames keep the route inspirational. First-timers find the distance manageable, and those chasing faster times can really open up on the flat sections. Looking for somewhere to train? Our Central London running routes and South London routes cover the best loops. Or, if you dancy stepping up to the full distance, why not try Marathons in London.

Winter and early spring see packed start lines as runners target sub-90 or simply tick off their first half, often using these as fitness checks before April's big goal. The network of segregated cycle paths and riverside trails means long stretches away from traffic lights and crossings.

Building up from shorter distances? Start with 10K runs in London or 5K races in London.

Looking for more options?

Find half marathons beyond the capital with Half Marathons near Watford, St Albans Half Marathons or Reading Half Marathons.

Top Tip: Viewing this page in the default “Featured view” will show you all the Best Half Marathons in London. 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 :-)


Popular & Featured

Race Calendar: Half Marathons In & Near London

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Brixton 5k, 10k & Half Marathon

London
Sun 05 Jul 26
£30.00 - £34.00
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Ealing Half Marathon 2026

London
Sun 27 Sep 26
£50.63 - £52.63
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Hampton Court Palace Running Festival Presented by Voltarol

East Molesey, Greater London
Sun 11 Oct 26
£42.00 - £47.00
4.2

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

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

Kingston Break-fest Run 8, 16 & 20mile

Kingston upon Thames, Greater London
Sun 07 Mar 27
£29.50 - £36.50
4.5

Run the Wild Half Marathon - Spring

Tring, Hertfordshire
Sat 13 Mar 27
£55.00
5.0

Moo-rathon, Calf and Hen K

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

Hampton Court Palace Half Marathon

East Molesey, Surrey
Sun 14 Mar 27
£43.00
4.2

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 Mar 27
£38.69

Surrey Half Marathon, 5k & Junior Race

Woking, Surrey
Sun 21 Mar 27
£17.00 - £43.00
5.0

Battersea 5k, 10k & Half Marathon

London
Sat 27 Mar 27
£34.00 - £40.00

Kew The Run: Half Marathon 2027

Richmond, Greater London
Sun 04 Apr 27
£30.00
4.4

Henley River Half Marathon, 10k & Junior Race

Henley-on-Thames, Oxfordshire
Sat 10 Apr 27
£12.00 - £37.00
4.6

PHOENIX - NOT the London Marathon Run 2027

Walton-on-Thames, Surrey
Sun 25 Apr 27
£39.95
5.0

Henley River Half Marathon, 10k & Junior Race

Henley-on-Thames, Oxfordshire
Sat 04 Sep 27
£12.00 - £37.00
4.6

Hampton Court Palace Running Festival Presented by Voltarol

East Molesey, Greater London
Sun 17 Oct 27
£42.00 - £47.00
4.2

Hertfordshire Half Marathon & 10k

Knebworth, Hertfordshire
Sun 07 Nov 27
£33.00 - £38.00
4.5

Run Gatwick Half Marathon & 5k

Crawley, West Sussex
Sun 21 Nov 27
£26.00 - £36.00
5.0
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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 Half Marathons in the South East or or read our complete guide to running in London.

We also list Half Marathons in and around Slough, Reading, Oxford, Cambridge and Brighton. If you’re in the London area but fancy something a bit shorter then check out our London 10k Runs page: and of course we also have a London Marathons list if you are looking to step up the distance. If you’re happy to travel or you want to build a race into a trip away then check out our national Half Marathons calendar and you can refine and filter your search from there.