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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

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

Dorking, Surrey
Sat 20 Jun 26
£74.95 - £134.95

MK24 Midsummer RunFest

Milton Keynes, Buckinghamshire
Sat 20 Jun 26
£15.00 - £48.00

Dunstable Downs Half Marathon

Dunstable, Bedfordshire
Sun 21 Jun 26
£35.00
4.8

Cock-a-doodle Dawdle - 5k,10k, Half Marathon, Full Marathon or Ultra Marathon

Hyde Hall Farm, Buntingford, SG9 0RU
Sat 27 Jun 26
£29.00 - £38.00

Lee Valley Velo Park - June

London, Greater London
Sat 27 Jun 26
£12.00 - £34.00
4.6

RunThrough Marlow Trail Run

Marlow, Buckinghamshire
Sun 28 Jun 26
£32.00 - £38.00

Richmond Park Half Marathon

London
Sun 28 Jun 26
£44.00 - £197.00
4.4

Midweek Chasing Numbers Jul 2026

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
Fri 03 Jul 26
£18.00 - £27.00
5.0

World Cup winners 60th anniversary Marathon

Milton Keynes, Buckinghamshire
Sat 04 Jul 26
£43.99

The Fix Addiction 5k, 10k and Half Marathon

Windsor, Berkshire
Sat 04 Jul 26
£25.00 - £30.00
4.7

Battersea Park 10k & Half Marathon

London
Sat 04 Jul 26
£34.00 - £42.00

Will Run For Ice Cream 2026

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sun 05 Jul 26
£18.00 - £35.00
5.0

Running GP at Goodwood Motor Circuit Races & Duathlons - July 2026

Chichester, West Sussex
Sun 05 Jul 26
£30.00 - £47.00

Chiltern Ridge Half Marathon

Aylesbury, Buckinghamshire
Sun 05 Jul 26
£35.00
4.3

World Cup winners 60th anniversary Marathon

Milton Keynes, Buckinghamshire
Sun 05 Jul 26
£43.99

Ooops I Ran It Again

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 11 Jul 26
£18.00 - £35.00

Run Dorney Lake Half Marathon, 10k & 5k - July

Windsor, Berkshire
Sun 12 Jul 26
£30.00 - £162.00
4.3

The Railway Run Marathon, Half Marathon & 50km

Milton Keynes, Buckinghamshire
Sat 18 Jul 26
£36.99 - £42.99

Battersea Park 10k & Half Marathon

London
Sat 18 Jul 26
£34.00 - £42.00

Formula One Marathons, Half Marathon & 50km

Milton Keynes, Buckinghamshire
Sun 19 Jul 26
£37.99 - £43.99

Midweek Medal Madness Run - July

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
Fri 24 Jul 26
£18.00 - £27.00

The Rasselbock 545

Oxford, Oxfordshire
Sat 25 Jul 26 - Sun 26 Jul 26
£39.50 - £160.00

Maidenhead Trail Run

Maidenhead, Berkshire
Sun 26 Jul 26
£28.00 - £36.00

Run Dorney Lake Half Marathon, 10k & 5k - July

Windsor, Berkshire
Sun 26 Jul 26
£30.00 - £162.00
4.3

Wind in the Pillows Marathons & Half marathon

Milton Keynes, Buckinghamshire
Sat 01 Aug 26
£34.99 - £42.99

Midweek Chasing Numbers Aug 2026

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
Fri 07 Aug 26
£18.00 - £27.00
5.0

PHOENIX - The Painted Cow Run

Dorking, Surrey
Sat 08 Aug 26
£22.00 - £39.95
5.0

Newbury Racecourse Half Marathon, 10k & 5k - August

Newbury, Berkshire
Sat 08 Aug 26
£27.00 - £152.00
4.9

Run Dorney Lake Half Marathon, 10k & 5k - August

Windsor, Berkshire
Sat 08 Aug 26
£30.00 - £162.00
4.3

Battersea Park 10k & Half Marathon

London
Sat 08 Aug 26
£34.00 - £42.00

Great British Bake Run 2026

The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
Sun 09 Aug 26
£18.00 - £35.00
4.5

PHOENIX - Prosecco Run

Dorking, Surrey
Sun 09 Aug 26
£22.00 - £39.95
5.0

Midweek Medal Madness Run August 2026

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
Fri 14 Aug 26
£18.00 - £27.00

Street Child - Craft Half & 10K

Richmond, Surrey
Sat 15 Aug 26
£25.00 - £40.00

Lee Valley Velo Park - August

London, Greater London
Sat 15 Aug 26
£12.00 - £34.00
4.6

SOUTHAMPTON RUNNING FESTIVAL

Southampton, Hampshire
Sun 16 Aug 26
£12.00 - £36.00
4.7

Isle of Wight Half Marathon

Ryde Rowing Club, Isle of Wight, PO33 1ND
Sun 16 Aug 26
£22.50

Run Dorney Lake Evening Runs 10k & 5k August

Windsor, Berkshire
Wed 26 Aug 26
£30.00 - £142.00
5.0

ATW Bedford Running Festival

Russell Park, The Embankment, Bedford MK40 3RH
Sat 05 Sep 26 - Sun 06 Sep 26
£12.72 - £41.34

Henley River 10k, Half Marathon & Junior Race September 2026

Henley-on-Thames, Oxfordshire
Sat 05 Sep 26
£7.00 - £142.00
4.6
Showing 161-200 of 249 results
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