Half Marathons In the South East 2026 - 2027

300

Half Marathons Found in the South East

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 :-)


A group of runners, some smiling and reaching out playfully, participate in a race along a tree-lined trail. The atmosphere is lively and cheerful. Bib numbers are visible on their shirts.

Kingston upon Thames

Kingston Half Marathon

Sun 22nd Nov

3.5

£40.45

Boosted
Two men are running on a grassy trail; one wears a blue athletic outfit, the other wears an orange shirt and a Santa hat. Both are smiling and appear to be participating in an outdoor event or fun run.

Gerrards Cross

Running Tribe

Sat 28th Nov

£40.00

Boosted
A group of runners participate in a race on a tree-lined dirt path, some wearing numbered bibs and athletic gear. The runners show various expressions, with greenery and trees in the background.

London

RUN Battersea Park Half Marathon Winter

Sun 31st Jan 2027

4.6

£41.60

Boosted
A smiling runner in an orange shirt and number 1973 raises both arms in celebration as he approaches the finish line of a race, with other runners and a cheering crowd in the background.

Colchester, Mile End

Colchester Half Marathon

Sun 14th Mar 2027

Free–£40.00

Boosted

London

Battersea Park 5k, 10k & Half Marathon

Sun 8th Aug 2027

from £36.00

Newbury

Newbury Racecourse Half Marathon, 10k & 5k

Sat 14th Aug 2027

4.8

from £30.00

Richmond

Richmond Park Half Marathon & 10k

Sun 15th Aug 2027

4.4

£40.00

London

Lee Valley Velo Park

Sat 28th Aug 2027

4.7

from £11.00

Milton Keynes

Gameboy Marathon & Half Marathon

Sat 4th Sep 2027

from £36.99

Henley-on-Thames

Henley River Half Marathon, 10k & Junior Race

Sat 4th Sep 2027

4.6

from £11.00

Tunbridge Wells, Lamberhurst

Bewl Water Autumn

Sat 4th Sep 2027

4.7

from £37.36

Bedford

ATW Bedford Running Festival

Sat 4th Sep 2027

from £13.78

Milton Keynes

Gameboy Marathon & Half Marathon

Sun 5th Sep 2027

from £36.99

London

Wimbledon 10k & Half Marathon

Sun 5th Sep 2027

4.8

from £34.00

Basildon

Basildon Half Marathon and Juniors

Sun 12th Sep 2027

5.0

from £11.00

from £25.00

Richmond

Richmond Park Half Marathon & 10k

Sun 19th Sep 2027

4.4

£40.00

Reigate

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

Sun 19th Sep 2027

4.0

from £18.00

London

Battersea Park 5k, 10k & Half Marathon

Sat 25th Sep 2027

4.8

from £36.00

Windsor, Berkshire

Windsor Half Marathon 2027

Sun 26th Sep 2027

4.8

from £38.00

Ealing

Wizz Air Ealing Half Marathon 2027

Sun 26th Sep 2027

from £44.21

London

Clapham Common 5k, 10k & Half Marathon

Sun 26th Sep 2027

2.5

from £30.00

Swindon

Swindon Half Marathon

Sun 26th Sep 2027

5.0

£38.00

Richmond

Thames Meander Autumn

Sun 3rd Oct 2027

4.1

from £39.48

Kingston upon Thames

Kingston Half Marathon 2027

Sun 3rd Oct 2027

5.0

£46.50

Tonbridge

Run Kent Half Marathon, 10k & 5k

Sun 3rd Oct 2027

4.8

from £32.00

Welwyn Garden City

ATW Welwyn Half Marathon & 10k

Sun 3rd Oct 2027

5.0

from £28.62

London

Victoria Park Half Marathon, 10k & 5k

Sat 9th Oct 2027

4.7

from £30.00

Milton Keynes

ATW Milton Keynes Miles & Music

Sun 10th Oct 2027

from £11.66

Milton Keynes

Millennium Falcon Marathon & Half Marathon

Sat 16th–17th Oct 2027

from £39.99

East Molesey, Surrey

Hampton Court Palace Running Festival Presented by Voltarol

Sun 17th Oct 2027

4.3

from £42.00

Basingstoke

Fishponds 10k & Half Marathon

Sun 17th Oct 2027

from £33.00

Chichester

Running GP at Goodwood Motor Circuit

Sun 17th Oct 2027

4.5

from £30.00

Henley-on-Thames

Henley Half Marathon

Sun 17th Oct 2027

4.9

from £10.00

London

Battersea Park Running Festival

Sat 23rd Oct 2027

4.7

from £12.00

Maidenhead

Maidenhead Half Marathon & 10k

Sun 24th Oct 2027

5.0

from £29.00

London

Lee Valley Velo Park

Sat 30th Oct 2027

4.7

from £11.00

Richmond

Richmond Park Half Marathon & 10k

Sun 31st Oct 2027

4.4

£40.00

Walton-on-Thames

River Thames Half Marathon 2027

Sun 31st Oct 2027

4.8

£42.00

Milton Keynes

Enigma Fireworks Marathons & Half Marathons

Fri 5th–6th Nov 2027

from £39.99

Knebworth, Hertfordshire

Hertfordshire Half Marathon & 10k

Sun 7th Nov 2027

4.5

from £33.00

Staines

Remembrance Run 2027 - South

Sun 14th Nov 2027

from £22.00

Richmond

Richmond Park Half Marathon & 10k

Sun 14th Nov 2027

4.4

£40.00

London

Battersea Park 5k, 10k & Half Marathon

Sat 20th Nov 2027

from £36.00

Showing 241–280 of 300 events

Virtual Sold out

from

Entries closed

On Sale
View race

Browse Half Marathons

Related races