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Half Marathons Found in the South East

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Half Marathons In the South East 2026 - 2027

The most comprehensive list of Half Marathons in the South East in 2026 - 2027 and South of England including Half Marathons in London, Southampton, Oxford, Reading, Portsmouth, Brighton and Slough. 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 the South East. 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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London

Race Calendar: Half Marathons In the South East

🚀Boosted

The Hurt

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

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
🚀Boosted

Whitstable & Herne Bay 1.5k, 5k, 10k & Half Marathon MoRun

Herne Bay, Kent
Sat 07 Nov 26
£15.00 - £35.00
4.9

Farmmageddon - 5K, 10K, HALF, FULL, ULTRA MARATHON & challenge events

Hyde Hall Farm, Buntingford, SG9 0RU
Sat 29 May 27 - Sun 30 May 27
£35.00 - £165.00

Southampton Running Festival

Southampton, Hampshire
Sun 30 May 27
£11.00 - £38.00
4.7

Star Wars 50th Anniversary Marathon & Half Marathon

Milton Keynes, Buckinghamshire
Sun 06 Jun 27
£46.99 - £54.99

Weybridge 5k, 10k, Half Marathon & Junior Race

Walton-on-Thames, Surrey
Sun 06 Jun 27
£13.00 - £42.00
4.8

Wendover Woods Half Marathon, 10k & 5k

Wendover Woods, Upper Icknield Way, Aston Clinton, HP22 5NQ
Sun 06 Jun 27
£7.32 - £32.42

The Maverick North Downs Trail 2027

Cranleigh, Surrey
Sat 19 Jun 27
£9.10 - £92.84
5.0

PHOENIX - Denbies Marathon / Half Marathon

Dorking, Surrey
Sat 19 Jun 27
£39.95
4.8

PHOENIX - Minotaur 50 Mile Ultra, Hydra 75 Mile Ultra & Centaur 100 Mile Ultra

Dorking, Surrey
Sat 19 Jun 27
£74.95 - £134.95

Finsbury Park 5k, 10k, Half Marathon & Junior Run

London
Sun 20 Jun 27
£11.00 - £34.00
4.3

PHOENIX - Summer Solstice Run

Dorking, Surrey
Sun 20 Jun 27
£22.00 - £39.95

Lee Valley Velo Park

London, Greater London
Sat 26 Jun 27
£11.00 - £34.00
4.7

Richmond Park Half Marathon

Richmond, Surrey
Sun 27 Jun 27
£40.00
4.4

The Spy who loved me Marathons & Half Marathon

Milton Keynes, Buckinghamshire
Sat 03 Jul 27 - Sun 04 Jul 27
£36.99 - £42.99

Battersea Park 5k, 10k & Half Marathon

London
Sun 04 Jul 27
£36.00 - £42.00

Battersea Park 5k, 10k & Half Marathon

London
Sat 17 Jul 27
£36.00 - £42.00

Formula One Marathons, Half Marathon & 50km

Milton Keynes, Buckinghamshire
Sat 17 Jul 27 - Sun 18 Jul 27
£36.99 - £42.99

Running GP at Goodwood Motor Circuit Races & Duathlons

Chichester, West Sussex
Sun 25 Jul 27
£30.00 - £53.00

Victoria Park Half Marathon, 10k & 5k

London
Sat 31 Jul 27
£30.00 - £38.00
4.7

Premier League Marathon & Half Marathon

Milton Keynes, Buckinghamshire
Sat 07 Aug 27
£38.99 - £42.99

Southampton Running Festival

Southampton, Hampshire
Sun 08 Aug 27
£11.00 - £38.00
4.7

PHOENIX - Prosecco Run

Dorking, Surrey
Sun 08 Aug 27
£22.00 - £39.95
5.0

Premier League Marathon & Half Marathon

Milton Keynes, Buckinghamshire
Sun 08 Aug 27
£39.99 - £42.99

Richmond Park Half Marathon

Richmond, Surrey
Sun 15 Aug 27
£40.00
4.4

Lee Valley Velo Park

London, Greater London
Sat 28 Aug 27
£11.00 - £34.00
4.7

Windsor Trail Half Marathon & 10k

Windsor, Berkshire
Sun 29 Aug 27
£37.00 - £44.00

Henley River Half Marathon, 10k & Junior Race

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

Gameboy Marathon & Half Marathon

Milton Keynes, Buckinghamshire
Sun 05 Sep 27
£36.99 - £42.99

Run Reigate 5k, 10k, Half Marathon & Kids Race

Reigate, Surrey
Sun 19 Sep 27
£18.00 - £42.00
4.0

Richmond Park Half Marathon

Richmond, Surrey
Sun 19 Sep 27
£40.00
4.4

Battersea Park 5k, 10k & Half Marathon

London
Sat 25 Sep 27
£36.00 - £42.00
4.8

Victoria Park Half Marathon, 10k & 5k

London
Sat 09 Oct 27
£30.00 - £38.00
4.7

Hampton Court Palace Running Festival Presented by Voltarol

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

Running GP at Goodwood Motor Circuit

Chichester, West Sussex
Sun 17 Oct 27
£30.00 - £45.00
4.5

Lee Valley Velo Park

London, Greater London
Sat 30 Oct 27
£11.00 - £34.00
4.7

Richmond Park Half Marathon

Richmond, Surrey
Sun 31 Oct 27
£40.00
4.4

Hertfordshire Half Marathon & 10k

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

Richmond Park Half Marathon

Richmond, Surrey
Sun 14 Nov 27
£40.00
4.4

Battersea Park 5k, 10k & Half Marathon

London
Sat 20 Nov 27
£36.00 - £42.00

Run Gatwick Half Marathon & 5k

Crawley, West Sussex
Sun 21 Nov 27
£29.00 - £44.00
5.0

Windsor Trail Half Marathon & 10k

Windsor, Berkshire
Sun 28 Nov 27
£37.00 - £45.00
Showing 241-280 of 290 results
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