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Half Marathons Found in the South East
View all ↓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
Race Calendar: Half Marathons In the South East
🚀Boosted
Best Race Series x Adidas 2026 - The Endurance Test - Half Marathon
Battersea Park, London
Sun 12 Apr 26
£28.00
🚀Boosted
MK Marathon Weekend
Stadium MK, Stadium Way Milton Keynes, BUCKS MK1 1ST United Kingdom
Sun 03 May 26 - Mon 04 May 26
£13.05 - £149.59
🚀Boosted
RUN Victoria Park Half Marathon
Victoria Park, E9 5HT
Sun 24 May 26
£35.24
WIMBLEDON 10K & HALF MARATHON
London
Sun 06 Sep 26
£34.00 - £38.00
4.5
Bewl Water Autumn
Wadhurst, East Sussex
Sat 12 Sep 26
£37.36 - £66.01
4.6
Flying Scotsman Marathons & Half Marathons
Milton Keynes, Buckinghamshire
Sat 12 Sep 26 - Sun 13 Sep 26
£34.99 - £41.99
Basildon Half Marathon
Basildon, Essex
Sun 13 Sep 26
£12.00 - £38.00
5.0
The Rubber Ducky Waddle
The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
Sun 13 Sep 26
£18.00 - £35.00
Midweek Chasing Numbers Sept 2026
Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
Fri 18 Sep 26
£18.00 - £27.00
5.0
Richmond Park Half Marathon
Richmond, Surrey
Sun 20 Sep 26
£40.00
4.4
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
Run Dorney Lake Marathon, Half Marathon, 10k & 5k - September
Windsor, Berkshire
Sat 26 Sep 26
£30.00 - £162.00
4.4
Battersea Park 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
Swindon Half Marathon
Swindon
Sun 27 Sep 26
£46.00
Ealing Half Marathon 2026
London
Sun 27 Sep 26
£45.37 - £47.37
Folkestone Rotary Half Marathon
The Grand, The Leas, Folkestone, Kent,CT20 2XL
Sun 27 Sep 26
£5.58 - £33.78
Midweek Chasing Numbers Oct 2026
Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
Fri 02 Oct 26
£18.00 - £27.00
Run Dorney Lake Half Marathon, 10k & 5k - October
Windsor, Berkshire
Sat 03 Oct 26
£30.00 - £162.00
4.4
Victoria Park Half Marathon, 10k & 5k
London
Sat 03 Oct 26
£30.00 - £38.00
4.7
The Maverick South Downs Trail
Horndean, Hampshire
Sat 03 Oct 26
£9.10 - £92.84
Kingston Half Marathon 2026
Kingston upon Thames, Surrey
Sun 04 Oct 26
£44.50
5.0
RUN KENT HALF MARATHON, 10K & 5K
Tonbridge, Kent
Sun 04 Oct 26
£32.00 - £40.00
4.8
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
£30.74 - £39.22
5.0
Run the Wild Half Marathon - Autumn
Tring, Hertfordshire
Sat 10 Oct 26
£55.00
5.0
Hampton Court Palace Half Marathon Presented by Nuun
East Molesey, Greater London
Sun 11 Oct 26
£47.00 - £212.00
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
Top Gun 40th Anniversary Marathons & Half Marathons
Milton Keynes, Buckinghamshire
Sat 17 Oct 26 - Sun 18 Oct 26
£37.99 - £43.99
Richmond Park Half Marathon
Richmond, Surrey
Sun 18 Oct 26
£40.00
4.4
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
Andover Half Marathon & 12km
14-4 High St, Andover SP10 1LJ
Sun 25 Oct 26
£20.91 - £36.60
Windsor Dorney Lakeside Half Marathon
Dorney Lake, Off Court Lane, Windsor, Berks, SL4 6QP
Sun 25 Oct 26
£36.21
Maidenhead Half Marathon
Maidenhead, Berkshire
Sun 25 Oct 26
£40.00
5.0
Wight Lines
Hordle Cliff West, Cliff Rd, Milford on Sea, SO41 0NT
Sun 25 Oct 26
£42.13
Richmond Half Marathon Autumn
Old Deer Park - Richmond Upon Thames TW9 2SF
Sun 01 Nov 26
£41.51
WITTERING BEACH RUN
Chichester, West Wittering, West Sussex
Sun 01 Nov 26
£32.50 - £42.50
5.0
ATW Bedford 10k & Half Marathon
Russell Park, Bedford, Bedfordshire, MK40 3RH
Sun 01 Nov 26
£28.62 - £37.10
5.0
Showing 201-240 of 294 results