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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
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
🚀Boosted
Whitstable & Herne Bay 1.5k, 5k, 10k & Half Marathon MoRun
Herne Bay, Kent
Sat 07 Nov 26
£12.00 - £30.00
4.9
Surrey - Duck n Run - Rubber Ducky - Day 3
Walton-on-Thames, Surrey
Mon 24 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 4
Walton-on-Thames, Surrey
Tue 25 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 5
Walton-on-Thames, Surrey
Wed 26 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 6
Walton-on-Thames, Surrey
Thu 27 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 7
Walton-on-Thames, Surrey
Fri 28 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 8
Walton-on-Thames, Surrey
Sat 29 Aug 26
£22.00 - £39.95
Windsor Trail Run
Windsor, Berkshire
Sun 30 Aug 26
£37.00 - £44.00
Surrey - Duck n Run - Rubber Ducky - Day 9
Walton-on-Thames, Surrey
Sun 30 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 10
Walton-on-Thames, Surrey
Mon 31 Aug 26
£22.00 - £39.95
ATW Bedford Running Festival
Russell Park, The Embankment, Bedford MK40 3RH
Sat 05 Sep 26 - Sun 06 Sep 26
£13.78 - £51.94
Henley River 10k, Half Marathon & Junior Race September 2026
Henley-on-Thames, Oxfordshire
Sat 05 Sep 26
£12.00 - £37.00
4.6
PHOENIX - Summer Marathon & Half Marathon
Walton-on-Thames, Surrey
Sat 05 Sep 26
£33.50
5.0
Andover Trail Marathon
Kings road, Enham Alamien, Andover, SP11 6HP. Post code is for the car park.
Sat 05 Sep 26
£37.36 - £212.46
4.8
The River Run
The Adur Recreation Ground - Shoreham-by-Sea, West Sussex
Sun 06 Sep 26
£34.17
4.4
Richmond Park September 5k, 10k and Half Marathon
London, Greater London
Sun 06 Sep 26
£25.00 - £30.00
4.5
WIMBLEDON 10K & HALF MARATHON
London
Sun 06 Sep 26
£34.00 - £38.00
4.5
The Shere 42k, 21k & 10k Multi Terrain Event
Shere Recreation Ground, Upper Street, Shere, Surrey, GU5 9JF
Sat 12 Sep 26
£27.50 - £70.00
4.5
Bewl Water Autumn
Wadhurst, East Sussex
Sat 12 Sep 26
£37.36 - £66.01
4.7
Flying Scotsman Marathons & Half Marathons
Milton Keynes, Buckinghamshire
Sat 12 Sep 26 - Sun 13 Sep 26
£34.99 - £41.99
PHOENIX BEDFORDSHIRE Pick n Mix
Bedford, Bedfordshire
Sat 12 Sep 26
£22.00 - £39.95
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
Run Whitstable & Herne Bay September 5k, 10k and half marathon
Herne Bay, Kent
Sun 13 Sep 26
£25.00 - £30.00
4.5
Basildon Half Marathon
Basildon, Essex
Sun 13 Sep 26
£12.00 - £38.00
5.0
Richmond Half Marathon @ Richmond RUNFEST 2026
Richmond, Greater London
Sun 13 Sep 26
£35.00
4.5
Midweek Chasing Numbers Sept 2026
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 18 Sep 26
£18.00 - £27.00
5.0
PHOENIX - Hedgie Hog Jog
Walton-on-Thames, Surrey
Sun 20 Sep 26
£22.00 - £40.00
Phoenix Crystal Palace - Retro Run
London
Sun 20 Sep 26
£22.00 - £39.95
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
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
Phoenix West Sussex - Fox Trot
Crawley, West Sussex
Sun 27 Sep 26
£22.00 - £39.95
Wizz Air Ealing Half Marathon 2026
London
Sun 27 Sep 26
£50.63 - £52.63
Showing 41-80 of 251 results