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Half Marathons Found in the South East

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Half Marathons In the South East 2025 - 2026

The most comprehensive list of Half Marathons in the South East in 2025 - 2026 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

Midweek Chasing Numbers Aug 2026

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

PHOENIX - The Painted Cow Run

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

Battersea Park 10k & Half Marathon

London
Sat 08 Aug 26
£34.00 - £42.00

PHOENIX - Prosecco Run

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

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

Midweek Medal Madness Run August 2026

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

Lee Valley Velo Park - August

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

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

PHOENIX - Summer Marathon & Half Marathon

Walton-on-Thames, Surrey
Sat 05 Sep 26
£33.50
5.0

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

Henley-on-Thames, Oxfordshire
Sat 05 Sep 26
£7.00 - £142.00
4.6

The River Run

The Adur Recreation Ground - Shoreham-by-Sea, West Sussex
Sun 06 Sep 26
£32.04
4.4

Bewl Water Autumn

Wadhurst, East Sussex
Sat 12 Sep 26
£37.36 - £66.01
4.6

Flying Scotsman Marathons & Half Marathons

Milton Keynes, Buckinghamshire
Sat 12 Sep 26 - Sun 13 Sep 26
£34.99 - £41.99

Richmond Half Marathon @ Richmond RUNFEST 2026

Richmond, Greater London
Sun 13 Sep 26
£30.00
4.5

Something To Talk About

Avon Tyrrell Outdoor Activity Centre, Bransgore, Christchurch BH23 8EE
Sun 20 Sep 26
£42.13

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

Windsor, Berkshire
Sat 26 Sep 26
£30.00 - £162.00
4.3

Battersea Park 10k & Half Marathon

London
Sat 26 Sep 26
£42.00

Ealing Half Marathon 2026

London
Sun 27 Sep 26
£42.11 - £44.21

Folkestone Rotary Half Marathon

The Grand, The Leas, Folkestone, Kent,CT20 2XL
Sun 27 Sep 26
£5.58 - £33.78

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

Windsor, Berkshire
Sat 03 Oct 26
£30.00 - £162.00
4.3

Hampton Court Palace Half Marathon Presented by Nuun

East Molesey, Greater London
Sun 11 Oct 26
£47.00 - £212.00
4.2

Chelmsford Marathon & Half Marathon

Central Park, Chelmsford, Essex, CM2 0FQ.
Sun 11 Oct 26
£40.08 - £72.60

Running GP at Goodwood Motor Circuit October

Chichester, West Sussex
Sun 11 Oct 26
£30.00 - £44.00
4.5

Top Gun 40th Anniversary Marathons & Half Marathons

Milton Keynes, Buckinghamshire
Sat 17 Oct 26 - Sun 18 Oct 26
£36.99 - £42.99

Lee Valley Velo Park - October

London, Greater London
Sat 24 Oct 26
£12.00 - £34.00
4.6

BATTERSEA PARK RUNNING FESTIVAL

London
Sat 24 Oct 26
£12.00 - £47.00
4.5

Andover Half Marathon & 12km

14-4 High St, Andover SP10 1LJ
Sun 25 Oct 26
£20.91 - £36.60

Wight Lines

Hordle Cliff West, Cliff Rd, Milford on Sea, SO41 0NT
Sun 25 Oct 26
£42.13

Hertfordshire Half Marathon & 10k

Knebworth, Hertfordshire
Sun 01 Nov 26
£40.00 - £212.00
4.5

Enigma Fireworks Marathons & Half Marathons

Milton Keynes, Buckinghamshire
Fri 06 Nov 26 - Sat 07 Nov 26
£34.99 - £41.99

Remembrance Run 2026 - South

Wraysbury Skiff and Punting Club, Riverside, Egham, TW20 0AE
Sun 08 Nov 26
£22.00 - £37.00

H&T Running: Remembrance Sunday 2026

Colchester, Essex
Sun 08 Nov 26
£23.50 - £40.00

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

Windsor, Berkshire
Sun 08 Nov 26
£30.00 - £162.00
4.3

Battersea Park Half Marathon

London
Sat 14 Nov 26
£42.00
4.6

The Hartfield Honey Run - 2026

Hartfield, East Sussex
Sun 15 Nov 26
£20.00 - £30.00
4.5

Battersea Park Half Marathon

London
Sat 05 Dec 26
£42.00
4.6

Running GP at Goodwood Motor Circuit December

Chichester, West Sussex
Sun 06 Dec 26
£30.00 - £44.00
4.5
Showing 201-240 of 248 results
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