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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

🚀Boosted

BEWL WATER 10KM, HALF MARATHON & ULTRA 50KM

Tunbridge Wells, Lamberhurst, East Sussex
10 May 25
£37.36 - £66.01
4.5
🚀Boosted

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

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

Run Bournemouth

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

Folkestone Rotary Half Marathon

The Grand, The Leas, Folkestone, Kent,CT20 2XL
28 Sep 25
£4.56 - £32.74
4.0

Ealing Half Marathon

London, Greater London
28 Sep 25
£50.00

Hever Castle Run Series

Edenbridge, Kent
28 Sep 25
£35.00 - £65.00
4.2

Offer

10% OFF

Street Child - Craft Half

London
28 Sep 25
£40.00

PHOENIX - Space Race - 2025

Walton-on-Thames, Surrey
28 Sep 25
£22.00 - £40.00

PHOENIX Fridays - Frisky Phoenix Friday 2025

Walton-on-Thames, Surrey
03 Oct 25
£26.00 - £33.00

VICTORIA PARK 5K, 10K & HALF MARATHON

London
04 Oct 25
£28.00 - £162.00
4.7

RUN DORNEY 5K, 10K & HALF MARATHON

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

RUN KENT HALF MARATHON, 10K & 5K

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

Thames Meander Autumn

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

Hastings Half Marathon

Grosvenor Gardens, Sea Rd, Grosvenor Cres, Saint Leonards-on-sea TN38 0BX
05 Oct 25
£7.61 - £41.12

Kingston Half Marathon 2025

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

PHOENIX Fridays - Fiery Phoenix Friday 2025

Walton-on-Thames, Surrey
10 Oct 25
£26.00 - £33.00

Run the Wild Half Marathon - Autumn

Tring, Hertfordshire
11 Oct 25
£50.00
5.0

PHOENIX - King of the Rungle

Walton-on-Thames, Surrey
11 Oct 25
£22.00 - £40.00

The Hurt

Guildford, Surrey
11 Oct 25
£31.00 - £35.00

Richmond Park Half Marathon

London
12 Oct 25
£42.00 - £182.00
4.4

Chelmsford Marathon & Half Marathon

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

The Richmond Autumn Riverside 10k and Half Marathon Run

Richmond, Greater London
12 Oct 25
£22.00 - £25.00
4.6

Scare Bear Run - Wales

Dare Valley Country Park, Aberdare, CF44 7PS
18 Oct 25
£27.00 - £35.00

Back to the Future 40th Anniversary Marathons & Half Marathons

Milton Keynes, Buckinghamshire
18 Oct 25 - 19 Oct 25
£36.99 - £42.99

Running GP at Goodwood Motor Circuit October

Chichester, West Sussex
19 Oct 25
£30.00 - £162.00
4.5

Bedgebury Forest Half Marathon & 10K

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

Henley Half Marathon

Henley-on-Thames, Oxfordshire
19 Oct 25
£10.00 - £40.00
4.8

Richmond Park October 5k, 10k and Half Marathon

London
19 Oct 25
£22.00 - £25.00
4.4

Maidstone Half Marathon

Maidstone, Kent
19 Oct 25
£32.86

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

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

Epping Forest Wildwood Trail Series Half Marathon & 10K

London
25 Oct 25
£24.00 - £34.00

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

River Thames Half Marathon 2025

Walton-on-Thames, Surrey
26 Oct 25
£34.00
4.5

Hertfordshire Half Marathon & 10k

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

Wendover Woods Marathon, Half Marathon & 10k

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

Enigma Fireworks Marathons & Half Marathons

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

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 - £39.95

SOUTH DOWNS TRAIL RUN

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

VICTORIA PARK 5K, 10K & HALF MARATHON

London
08 Nov 25
£28.00 - £162.00
4.7

Remembrance Day Run - South

Wraysbury Skiff and Punting Club, Riverside, Egham, TW20 0AE
09 Nov 25
£29.00 - £37.00

Richmond Park Half Marathon

London
09 Nov 25
£42.00 - £182.00
4.4
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