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Half Marathons Found in the South East

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Half Marathons In the South East 2024 - 2025

The most comprehensive list of Half Marathons in the South East in 2024 - 2025 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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Race Calendar: Half Marathons In the South East

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Harrold-Odell Country Park - Bedfordshire. 10km, 25km & 50km Trail Races.

Bedford, Bedfordshire
08 Mar 25
£32.00 - £55.00

Andover Trail Marathon & Half

Kings road, Enham Alamien, Andover, SP11 6HP. Post code is for the car park. ​
06 Sep 25
£35.00 - £45.00
4.8

RunThrough Wimbledon Common Half Marathon & 10k

London, Greater London
07 Sep 25
£32.00 - £162.00
4.9

Run2Paris September 2025

London
10 Sep 25 - 14 Sep 25
£950.00

Bewl Water Autumn

Wadhurst
13 Sep 25
£37.36 - £66.01
4.5

Coronation Scot Marathons & Half Marathon

Milton Keynes, Buckinghamshire
13 Sep 25 - 14 Sep 25
£34.99 - £42.99

The River Run

Shoreham-by-Sea, West Sussex
14 Sep 25
£32.00 - £214.20

PHOENIX - Dragon's Eye Race 2

Cranleigh, Surrey
14 Sep 25
£27.00 - £40.00
5.0

Richmond Park Half Marathon

London
21 Sep 25
£38.00 - £172.00
4.4

Winchester Half Marathon

Winchester City Centre
21 Sep 25
£10.46 - £40.53
5.0

The One on the Trail - Marlow

Marlow
28 Sep 25
£10.00 - £35.00

Folkestone Rotary Half Marathon

The Grand, The Leas, Folkestone, Kent,CT20 2XL
28 Sep 25
£4.56 - £27.48
4.0

ATW Welwyn Half Marathon & 10k

Gosling Sports Park, Stanborough Road, Welwyn Garden City, Hertfordshire, AL8 6XE
28 Sep 25
£30.74 - £39.22

Windsor Half Marathon 2025

Windsor, Windsor and Maidenhead
28 Sep 25
£44.00 - £48.00
4.7

RUN DORNEY 5K, 10K & HALF MARATHON

Windsor, Berkshire
04 Oct 25
£30.00 - £162.00
4.2

VICTORIA PARK 5K, 10K & HALF MARATHON

London
04 Oct 25
£28.00 - £152.00
4.7

Thames Meander Autumn

Petersham & Ham Sea Scouts HQ, Douglas House Meadow, Richmond, TW10 7AH
05 Oct 25
£37.36 - £58.59
4.5

Kingston Half Marathon 2025

Kingston upon Thames, Greater London
05 Oct 25
£39.50
5.0

RUN KENT HALF MARATHON, 10K & 5K

Tonbridge, Kent
05 Oct 25
£26.00 - £162.00
5.0

BATTERSEA PARK RUNNING FESTIVAL

London
12 Oct 25
£7.00 - £152.00

Chelmsford Marathon & Half Marathon

Central Park, Chelmsford, Essex, CM2 0FQ.
12 Oct 25
£33.78 - £61.58

Bedgebury Forest Half Marathon & 10K

Bedgebury National Pinetum & Forest, Bedgebury Road, Goudhurst, Kent, TN17 2SJ
19 Oct 25
£7.68 - £33.06

Running GP at Goodwood Motor Circuit October

Chichester, West Sussex
19 Oct 25
£28.00 - £142.00
4.5

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

London, Greater London
25 Oct 25
Free - £122.00
4.6

Richmond Park Half Marathon

London
26 Oct 25
£38.00 - £172.00
4.4

Maidenhead Half Marathon

Maidenhead, Berkshire
26 Oct 25
£34.00 - £152.00

THAMES PATH TRAIL RUN

Windsor, Berkshire
26 Oct 25
£35.00 - £40.00

Wendover Woods Marathon, Half Marathon & 10k

Wendover Woods, Upper Icknield Way, Aston Clinton, HP22 5NQ
02 Nov 25
£6.65 - £48.96

Hertfordshire Half Marathon & 10k

Knebworth, Hertfordshire
02 Nov 25
£32.00 - £172.00
4.5

Enigma Fireworks Marathons & Half Marathons

Milton Keynes, Buckinghamshire
07 Nov 25 - 08 Nov 25
£34.99 - £43.99

SOUTH DOWNS TRAIL RUN

Chichester, West Sussex
08 Nov 25
£30.00 - £40.00

GBR Run Bexhill Remembrance Run

Bexhill on Sea, East Sussex
08 Nov 25
£7.50 - £30.00

PHOENIX - Lest We Forget - 2025

Sunbury on Thames, Middlesex
08 Nov 25
£22.00 - £44.95

VICTORIA PARK 5K, 10K & HALF MARATHON

London
08 Nov 25
£28.00 - £152.00
4.7

RUN DORNEY 5K, 10K & HALF MARATHON

Windsor, Berkshire
09 Nov 25
£30.00 - £142.00
4.2

The One by the Canal

Watford, Hertfordshire
09 Nov 25
£35.00

Richmond Park Half Marathon

London
09 Nov 25
£38.00 - £172.00
4.4

PHOENIX - Remembrance Day Marathon & Half Marathon

Sunbury on Thames, Middlesex
09 Nov 25
£39.95

Battersea Park Half Marathon

London
15 Nov 25
£37.00 - £162.00
4.8

NEW FOREST CENTRAL TRAIL RUN

Brockenhurst, Hampshire
15 Nov 25
£30.00 - £40.00

The Hartfield Honey Run - 2025

Hartfield, East Sussex
16 Nov 25
£20.00 - £30.00
4.2
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