Half Marathons Found In & Near London
View all ↓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 :-)
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Race Calendar: Half Marathons In & Near London
Basildon Half Marathon
Basildon, EssexSwindon Half Marathon
SwindonKingston Half Marathon 2026
Kingston upon Thames, SurreyThe Hurt
Guildford, SurreyATW Welwyn Half Marathon & 10k
Gosling Sports Park, Stanborough Road, Welwyn Garden City, Hertfordshire, AL8 6XEPHOENIX - Water Dragon
Walton-on-Thames, SurreyPHOENIX - Ghost Train
Walton-on-Thames, SurreyEpping Forest Half Marathon & 10K Wildwood Trail Series
LondonThe Hurt
Guildford, SurreyPHOENIX - Thou Shalt Run
Walton-on-Thames, SurreyHampton Court Palace Running Festival Presented by Voltarol
East Molesey, Greater LondonThe Richmond Autumn Riverside 10k and Half Marathon Run
Richmond, Greater LondonChelmsford Marathon & Half Marathon
Central Park, Chelmsford, Essex, CM2 0FQ.Lee Valley Velo Park - October
London, Greater LondonRichmond Park Half Marathon
Richmond, SurreyWindsor Dorney Lakeside Half Marathon
Dorney Lake, Off Court Lane, Windsor, Berks, SL4 6QPPhoenix West Sussex - Secret Squirrel
Crawley, West SussexHenley Half Marathon
Henley-on-Thames, OxfordshireBATTERSEA PARK RUNNING FESTIVAL
LondonScare Bear Run 2026
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SURiver Thames Half Marathon 2026
Walton-on-Thames, SurreyRunning 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.Maidenhead Half Marathon & 10k
Maidenhead, BerkshireThe Horrorwood Halloween Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SUWendover Woods Marathon, Half Marathon & 10k
Wendover Woods, Upper Icknield Way, Aston Clinton, HP22 5NQRichmond Half Marathon Autumn
Old Deer Park - Richmond Upon Thames TW9 2SFRun London Victoria Park Half/10k/5k
LondonHertfordshire Half Marathon & 10k
Knebworth, HertfordshireWe Will Remember Poppy Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SUPHOENIX - Lancaster Bomber Run
Walton-on-Thames, SurreyPHOENIX - Lest We Forget
Walton-on-Thames, SurreyVictoria Park Half Marathon, 10k & 5k
LondonRemembrance Run 2026 - South
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SUWindsor Trail Run
Windsor, BerkshirePHOENIX - Remembrance Day Marathon & Half Marathon
Walton-on-Thames, SurreyRun Dorney Lake Half Marathon, 10k & 5k - November
Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJPhoenix West Sussex - Firework Flash
Horsham, West SussexLondon 1.5k, 5k, 10k and Half Marathon MoRun
LondonPHOENIX - Wild Goose Chase
Walton-on-Thames, SurreyBattersea Park 5k, 10k & Half Marathon
LondonThe Hartfield Honey Run - 2026
Hartfield, East SussexRUN Battersea Park Half Marathon
Battersea Park next to the Bandstand - SW11 4NJPHOENIX - Chicken Run
Walton-on-Thames, SurreyThe Smurf Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SURelated 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.