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 5k, 10k & Half Marathon

Sat 27th Mar 2027

4.8

from £36.00

£33.11

from £18.00

Richmond

Richmond Park Half Marathon & 10k

Sun 28th Mar 2027

4.4

£40.00

Milton Keynes

Milton Keynes Festival of Running

Sun 28th Mar 2027

from £30.00

from £18.00

Stevenage

ATW Stevenage Spring Half Marathon & 10k

Mon 29th Mar 2027

5.0

from £34.98

from £18.00

from £18.00

from £18.00

from £18.00

London

Battersea Park 5k, 10k & Half Marathon

Sat 3rd Apr 2027

from £36.00

Brighton, Falmer

The Maverick East Sussex Trail 2027

Sat 3rd Apr 2027

from £9.10

from £18.00

from £18.00

Windsor

Windsor Trail Half Marathon & 10k

Sun 4th Apr 2027

4.5

from £37.00

London

Putney & Fulham Half Marathon

Sun 4th Apr 2027

4.9

£41.51

Romney Marsh

Brett Lydd Half Marathon & 20 Mile

Sun 4th Apr 2027

4.5

from £33.59

London

Wimbledon 10k & Half Marathon

Sun 4th Apr 2027

4.8

from £34.00

Staines

Midweek Medal Madness Run April 2027

Fri 9th Apr 2027

4.5

from £18.00

Egham

Magna Carta Spring

Sat 10th Apr 2027

from £39.48

Henley-on-Thames

Henley River Half Marathon, 10k & Junior Race

Sat 10th Apr 2027

4.6

from £11.00

London

Victoria Park Half Marathon, 10k & 5k

Sat 10th Apr 2027

4.7

from £30.00

Staines

Save The Rhino Run

Sat 10th Apr 2027

4.8

from £18.00

from £22.00

London

Finsbury Park 5k, 10k & Half Marathon

Sun 11th Apr 2027

4.3

from £11.00

from £22.00

from £39.00

Staines

The Peanut Butter Run

Sat 17th Apr 2027

from £18.00

Basingstoke

Dell 10k & Half Marathon

Sun 18th Apr 2027

4.8

from £33.00

Ashford

Kent Spring Marathon & Half Marathon

Sun 18th Apr 2027

4.9

from £7.61

London

Lee Valley Velo Park

Sat 24th Apr 2027

4.7

from £11.00

Crawley

PHOENIX West Sussex - NOT London Marathon

Sat 24th Apr 2027

from £22.00

Walton-on-Thames

PHOENIX - NOT the London Marathon Run 2027

Sun 25th Apr 2027

5.0

£39.95

London

Victoria Park Half Marathon, 10k & 5k

Sat 1st May 2027

4.7

from £30.00

Worthing

Worthing Runfest Half Marathon & 10k 2027

Sun 2nd May 2027

4.8

from £35.50

Lancing

Three Forts Challenge

Sun 2nd May 2027

from £20.00

Milton Keynes

MK Marathon Weekend

Sun 2nd–3rd May 2027

3.5

from £13.05

Andover

Collingbourne Races

Sat 8th May 2027

4.7

from £32.04

London

Battersea Park 5k, 10k & Half Marathon

Sat 8th May 2027

from £36.00

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