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Half Marathons Found in the South East
View all ↓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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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
ATW St Albans Half Marathon #icelollyrun
Verulamium Park, St Albans AL1 2DL
14 Jun 26
£11.66 - £38.16
5.0
Dunstable Downs Half Marathon
Dunstable, Bedfordshire
21 Jun 26
£35.00
4.8
Cock-a-doodle Dawdle - 5k,10k, Half Marathon, Full Marathon or Ultra Marathon
Hyde Hall Farm, Buntingford, SG9 0RU
27 Jun 26
£29.00 - £38.00
RunThrough Marlow Trail Run
Marlow, Buckinghamshire
28 Jun 26
£28.00 - £34.00
Chiltern Ridge Half Marathon
Aylesbury, Buckinghamshire
05 Jul 26
£35.00
4.3
Maidenhead Trail Run
Maidenhead, Berkshire
26 Jul 26
£28.00 - £34.00
Henley River 10k, Half Marathon & Junior Race September 2026
Henley-on-Thames, Oxfordshire
05 Sep 26
£7.00 - £142.00
4.5
Hampton Court Palace Half Marathon Presented by Nuun
East Molesey, Greater London
18 Oct 26
£47.00 - £212.00
4.2
Hertfordshire Half Marathon & 10k
Knebworth, Hertfordshire
01 Nov 26
£40.00 - £212.00
4.5
Zodiac Run
02 Jan 25 - 31 Dec 25
£10.00
Offer
Thanks for booking a Running Bug event through findarace.com - 10% OFF
Richmond Park August 5k, 10k and Half Marathon
London, Greater London
17 Aug 25
£25.00 - £30.00
4.4
Andover Trail Marathon & Half
Kings road, Enham Alamien, Andover, SP11 6HP. Post code is for the car park.
06 Sep 25
£35.00 - £45.00
4.8
Richmond Park September 5k, 10k and Half Marathon
London, Greater London
07 Sep 25
£25.00 - £30.00
4.4
The River Run
Shoreham-by-Sea, West Sussex
14 Sep 25
£32.00 - £214.20
Run the Wild Half Marathon - Autumn
Tring, Hertfordshire
11 Oct 25
£55.00
5.0
Back to the Future 40th Anniversary Marathons & Half Marathons
Milton Keynes, Buckinghamshire
18 Oct 25 - 19 Oct 25
£38.99 - £44.99
PHOENIX - Pink Flamingo Run
Walton-on-Thames, Surrey
25 Oct 25
£22.00 - £40.00
River Thames Half Marathon 2025
Walton-on-Thames, Surrey
26 Oct 25
£34.00
4.5
Salisbury Plain Winter Edition
Old Fowler Barracks, Ludgershall road, Ludgershall, SP11 9RR.
06 Dec 25
£37.36 - £53.28
4.4
Showing 201-219 of 219 results