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Half Marathons Found in the South East

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Half Marathons In the South East 2026 - 2027

The most comprehensive list of Half Marathons in the South East in 2026 - 2027 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 :-)


Popular & Featured

London

Race Calendar: Half Marathons In the South East

🚀Boosted

Independence Weekend Runs: 5k, 10k, Half, Full & Ultra Marathons

Winchester, Hampshire
Sat 04 Jul 26 - Sun 05 Jul 26
£39.95
🚀Boosted

Winchester Half Marathon

Winchester City Centre
Sun 20 Sep 26
£10.82 - £40.53
5.0
🚀Boosted

Wizz Air Ealing Half Marathon 2026

London
Sun 27 Sep 26
£50.63 - £52.63

Something To Talk About

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

Run Reigate Half Marathon, 10k, 5k & Kids Race

Reigate, Surrey
Sun 20 Sep 26
£19.00 - £42.00
4.0

PHOENIX - Cakeathon

Walton-on-Thames, Surrey
Sat 26 Sep 26
£22.00 - £40.00

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

Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJ
Sat 26 Sep 26
£29.68 - £42.40
4.4

Battersea Park 5k, 10k & Half Marathon

London
Sat 26 Sep 26
£40.00

Clapham Common 5k, 10k & Half Marathon

London
Sun 27 Sep 26
£32.00 - £34.00

PHOENIX - Chocothon

Walton-on-Thames, Surrey
Sun 27 Sep 26
£22.00 - £40.00

Swindon Half Marathon

Swindon
Sun 27 Sep 26
£46.00

Run Barns Green Half Marathon, 10K and 5k

Horsham, West Sussex
Sun 27 Sep 26
£20.00 - £37.00
5.0

Windsor Half Marathon 2026

Windsor, Windsor and Maidenhead
Sun 27 Sep 26
£44.00 - £48.00
4.8

Wizz Air Ealing Half Marathon 2026

London
Sun 27 Sep 26
£50.63 - £52.63

Folkestone Rotary Half Marathon

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

Hever Castle Run Series

Edenbridge, Kent
Sun 27 Sep 26
£37.63 - £69.88
4.2

Midweek Chasing Numbers Oct 2026

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
Fri 02 Oct 26
£18.00 - £27.00

Think Pink Day 1

Fareham, Hampshire
Sat 03 Oct 26
£39.95

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

Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJ
Sat 03 Oct 26
£29.68 - £36.04
4.4

Victoria Park Half Marathon, 10k & 5k

London
Sat 03 Oct 26
£30.00 - £38.00
4.7

The Maverick South Downs Trail 2026

Horndean, Hampshire
Sat 03 Oct 26
£9.10 - £92.84

CHICHESTER HALF MARATHON

Chichester, West Sussex
Sun 04 Oct 26
£39.50 - £44.50

RUN KENT HALF MARATHON, 10K & 5K

Tonbridge, Kent
Sun 04 Oct 26
£32.00 - £40.00
4.8

Kingston Half Marathon 2026

Kingston upon Thames, Surrey
Sun 04 Oct 26
£44.50
5.0

Think Pink Day 2

Fareham, Hampshire
Sun 04 Oct 26
£39.95

The Autumn Lucky Dip Run

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sun 04 Oct 26
£18.00 - £35.00

ATW Welwyn Half Marathon & 10k

Gosling Sports Park, Stanborough Road, Welwyn Garden City, Hertfordshire, AL8 6XE
Sun 04 Oct 26
£34.98 - £43.46
5.0

Thames Meander Autumn

Richmond, Greater London
Sun 04 Oct 26
£37.36 - £58.59
4.1

Epping Forest Half Marathon & 10K Wildwood Trail Series

London
Sat 10 Oct 26
£24.00 - £34.00

The Hurt

Guildford, Surrey
Sat 10 Oct 26
£31.00 - £35.00

Run the Wild Half Marathon - Autumn

Tring, Hertfordshire
Sat 10 Oct 26
£59.00
5.0

Hampton Court Palace Running Festival Presented by Voltarol

East Molesey, Greater London
Sun 11 Oct 26
£42.00 - £47.00
4.2

Running GP at Goodwood Motor Circuit October

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

Chelmsford Marathon & Half Marathon

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

Lee Valley Velo Park - October

London, Greater London
Sat 17 Oct 26 - Sat 24 Oct 26
£12.00 - £34.00
4.7

Richmond Park Half Marathon

Richmond, Surrey
Sun 18 Oct 26
£40.00
4.4

Bedgebury Forest Half Marathon & 10K

Bedgebury National Pinetum & Forest, Bedgebury Road, Goudhurst, Kent, TN17 2SJ
Sun 18 Oct 26
£7.68 - £34.10

Windsor Dorney Lakeside Half Marathon

Dorney Lake, Off Court Lane, Windsor, Berks, SL4 6QP
Sun 18 Oct 26
£36.21

Henley Half Marathon

Henley-on-Thames, Oxfordshire
Sun 18 Oct 26
£10.00 - £40.00
4.9

BATTERSEA PARK RUNNING FESTIVAL

London
Sat 24 Oct 26
£12.00 - £47.00
4.5

Scare Bear Run 2026

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 24 Oct 26
£18.00 - £35.00

River Thames Half Marathon 2026

Walton-on-Thames, Surrey
Sun 25 Oct 26
£39.50
4.8

Andover Half Marathon & 12km

14-4 High St, Andover SP10 1LJ
Sun 25 Oct 26
£20.91 - £36.60
Showing 81-120 of 252 results
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