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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 Autumn

Bewl Water Visitor Centre HQ, Bewl Water, Bewlbridge Ln, Lamberhurst, Wadhurst TN3 8JH
13 Sep 25
£37.36 - £66.01
4.6
🚀Boosted

Windsor Half Marathon 2025

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

Whitstable & Herne Bay 1.5k, 5k, 10k & Half Marathon MoRun

Herne Bay, Kent
01 Nov 25
£12.00 - £30.00
5.0
🚀Boosted

Wendover Woods Marathon, Half Marathon & 10k

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

PHOENIX - Hot Lips Run

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

RUN DORNEY 5K, 10K & HALF MARATHON

Windsor, Berkshire
27 Sep 25
£30.00 - £162.00
4.2

Street Child - Craft Half & 10K

London
28 Sep 25
£25.00 - £40.00

Swindon Half Marathon Presented By Voltarol

Swindon
28 Sep 25
£47.00 - £212.00

Hever Castle Run Series

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

Ealing Half Marathon

London, Greater London
28 Sep 25
£55.00

Richmond Park Half Marathon

Richmond Park, Sheen Gate Car Park Area. TW10 5HT
28 Sep 25
£53.28

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 - £32.74
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

PHOENIX - Space Race - 2025

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

Run Barns Green Half Marathon, 10K and 5k

Horsham, West Sussex
28 Sep 25
£17.50 - £34.00
5.0

Midweek Chasing Numbers Oct 2025

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
03 Oct 25
£18.00 - £27.00
5.0

PHOENIX Fridays - Frisky Phoenix Friday 2025

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

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 - £162.00
4.7

The Autumn Lucky Dip Run

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
05 Oct 25
£18.00 - £35.00

Hastings Half Marathon

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

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
£30.00 - £172.00
5.0

PHOENIX Fridays - Fiery Phoenix Friday 2025

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

The Hurt

Guildford, Surrey
11 Oct 25
£31.00 - £35.00

PHOENIX - King of the Rungle

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

PHOENIX - Orca Run

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

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
£25.00 - £30.00
4.6

PHOENIX - Raging Bull Run

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

BATTERSEA PARK RUNNING FESTIVAL

London
18 Oct 25
£7.00 - £182.00
5.0

Bedgebury Forest Half Marathon & 10K

Bedgebury National Pinetum & Forest, Bedgebury Road, Goudhurst, Kent, TN17 2SJ
19 Oct 25
£27.75 - £33.06

Henley Half Marathon

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

PHOENIX - Sea Turtle Run

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

Running GP at Goodwood Motor Circuit October

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

Richmond Park October 5k, 10k and Half Marathon

London
19 Oct 25
£25.00 - £30.00
4.4

Maidstone Half Marathon

Mote Park, Turkey Court, Maidstone ME15 7SU
19 Oct 25
£32.86

Scare Bear Run 2025

The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
25 Oct 25
£18.00 - £35.00

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
Showing 41-80 of 219 results
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