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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

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Run Bournemouth

Bournemouth, Dorset
11 Oct 25 - 12 Oct 25
£15.00 - £44.75
4.5

Run the Thames Bridges - half marathon

London
16 Feb 24 - 31 Dec 25
£17.00 - £24.00
5.0

Run the Ghost Tubes - Half Marathon & 10K

London
01 Oct 24 - 31 Dec 25
£14.00 - £17.00
5.0

Midweek Chasing Numbers June 2025

Wraysbury Skiff & Punting Club, Egham, TW20 0AE
06 Jun 25
£27.00
5.0

Show me the Monet Marathons & Half Marathon

Milton Keynes, Buckinghamshire
07 Jun 25 - 08 Jun 25
£36.99 - £42.99

Gravel Rush, Winchester

Winchester, Hampshire
07 Jun 25
£25.00 - £32.00

PHOENIX - The Purple Turtle Run

Sunbury on Thames, Middlesex
07 Jun 25
£22.00 - £40.00

Magna Carta Summer

Wraysbury Skiff & Punting Club  Riverside  Egham  Surrey TW20 0AA
07 Jun 25
£37.36 - £58.59
4.0

RUN DORNEY 5K, 10K & HALF MARATHON June 2025

Windsor, Berkshire
07 Jun 25
£30.00 - £376.00
4.2

PHOENIX - Are We There Yet Denbies

Dorking, Surrey
08 Jun 25
£22.00 - £39.95

ATW St Albans Half Marathon #icelollyrun

Verulamium Park, St Albans AL1 2DL
08 Jun 25
£11.66 - £43.46

The Summer Lucky Dip Run

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
08 Jun 25
£27.00 - £35.00

PHOENIX Fridays - Friday the 13th

Sunbury on Thames, Middlesex
13 Jun 25
£26.00 - £33.00

PHOENIX - Rainbow Dolphin Run

Sunbury on Thames, Middlesex
14 Jun 25
£44.95

My Little Care Bear Run

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
14 Jun 25
£27.00 - £35.00

The Hampshire Hoppit - Marathon, Half Marathon, and 10k

Basingstoke, Hampshire
15 Jun 25
£31.00 - £59.00
5.0

FINSBURY PARK 5K, 10K & HALF MARATHON

London
15 Jun 25
£30.00 - £142.00
4.3

PHOENIX - Denbies Marathon / Half Marathon

Dorking, Surrey
21 Jun 25 - 22 Jun 25
£39.95
4.5

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

Dorking, Surrey
21 Jun 25
£74.95 - £134.95

LEE VALLEY VELOPARK 1 MILE, 5K, 10K, 10 MILE & HALF MARATHON

London, Greater London
21 Jun 25
Free - £122.00
4.6

MK24 Midsummer Run

Milton Keynes, Buckinghamshire
21 Jun 25 - 22 Jun 25
£15.00 - £46.00

Midsummer Murder Trail Race

Henley-on-Thames, Oxfordshire
22 Jun 25
£27.00 - £29.00
5.0

Dunstable Downs Half Marathon

Dunstable, Bedfordshire
22 Jun 25
£32.00
4.8

The One to the Castle - Windsor

Windsor, Berkshire
22 Jun 25
£35.00

PHOENIX Fridays - Retro Run Friday

Walton-on-Thames, Surrey
27 Jun 25
£26.00 - £33.00

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

Hyde Hall Farm, Buntingford, SG9 0RU
28 Jun 25
£25.00 - £37.50

VICTORIA PARK 5K, 10K & HALF MARATHON

London
29 Jun 25
£28.00 - £162.00
4.7

Henry VIII's Wives Half Marathon

London
01 Jul 25 - 31 Dec 25
£17.00

Midweek Chasing Numbers July 2025

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
04 Jul 25
£27.00
5.0

PHOENIX Fridays - Independence Friday

Walton-on-Thames, Surrey
04 Jul 25
£26.00 - £33.00

The Fix Addiction 5k, 10k and Half Marathon

Windsor, Buckinghamshire
05 Jul 25
£25.00 - £30.00
5.0

Will Run For Ice Cream

The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
05 Jul 25
£27.00 - £35.00

PHOENIX - Cheeky Beaver Run

Walton-on-Thames, Surrey
05 Jul 25
£22.00 - £40.00

Chiltern Ridge Half Marathon

Aylesbury, Buckinghamshire
06 Jul 25
£32.00
4.3

The Richmond Summer Riverside 10k and Half Marathon Run

Richmond, Greater London
06 Jul 25
£25.00 - £30.00
5.0

Richmond Park Half Marathon

London
06 Jul 25
£42.00 - £182.00
4.4

PHOENIX - All Stars Blue

Dorking, Surrey
06 Jul 25
£22.00 - £39.95

Running GP at Goodwood Motor Circuit Races & Duathlons July

Chichester, West Sussex
06 Jul 25
£30.00 - £232.00

Live Aid 40th Anniversary Marathon Half Marathon & 50km

Milton Keynes, Buckinghamshire
12 Jul 25 - 13 Jul 25
£36.99 - £49.99

PHOENIX - Manta Ray Run

Walton-on-Thames, Surrey
13 Jul 25
£22.00 - £40.00

RUN DORNEY 5K, 10K & HALF MARATHON

Windsor, Berkshire
13 Jul 25
£30.00 - £162.00
4.2
Showing 1-40 of 243 results
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