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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!
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Race Calendar: Half Marathons In the South East
🚀Boosted
Whitstable & Herne Bay 1.5k, 5k, 10k & Half Marathon MoRun
Herne Bay, Kent
01 Nov 25
£12.00 - £30.00
5.0
🚀Boosted
RUN Battersea Park Half Marathon
Battersea Park next to the Bandstand - SW11 4NJ
16 Nov 25
£33.11
ATW Stevenage Spring Half Marathon & 10k
Ridlins Athletics Track, Woodcock Rd, Shephall, Stevenage
06 Apr 26
£27.56 - £36.04
Eggcellent Easter Blue Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
06 Apr 26
£18.00 - £35.00
Henley River Half Marathon, 10k & Junior Race April 2026
Henley-on-Thames, Oxfordshire
11 Apr 26
£7.00 - £142.00
4.5
Love it or Hate it Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
11 Apr 26
£18.00 - £35.00
London Landmarks Half Marathon
London, Greater London
12 Apr 26
£35.00
4.5
Midweek Medal Madness Run April 2026
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
17 Apr 26
£18.00 - £27.00
Kent Spring Marathon & Half Marathon
Sandyacres Sports Club, Sandyhurst Lane, Ashford, Kent, TN25 4PE
19 Apr 26
£33.06 - £41.54
4.9
Lee Valley Velo Park - April
London, Greater London
25 Apr 26
£12.00 - £142.00
4.6
Midweek Chasing Numbers May 2026
Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
01 May 26
£18.00 - £27.00
5.0
Run Dorney Lake Half Marathon, 10k & 5k - May
Windsor, Berkshire
02 May 26
£30.00 - £162.00
4.3
MK Marathon Weekend
Stadium MK, Stadium Way Milton Keynes, BUCKS MK1 1ST United Kingdom
03 May 26 - 04 May 26
£13.05 - £128.25
Three Forts Challenge
Lancing Manor Leisure Centre, Manor Road, Lancing, West Sussex, BN15 0PH
03 May 26
£20.00 - £45.00
BigWayRound - Winchester
Winchester Rugby Club, Nuns Walk, Winchester, SO23 7EF
04 May 26
£40.53 - £59.64
Bank Holiday Madness May 2026
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
04 May 26
£18.00 - £27.00
The All Nations 5k, 10k and Half Marathon Run
Windsor, Berkshire
09 May 26
£25.00 - £30.00
4.3
The Spring Lucky Dip Run 2026
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
10 May 26
£18.00 - £35.00
Run Gatwick Half Marathon & 5k
Crawley, West Sussex
10 May 26
£29.00 - £132.00
Rocky at 50 Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
16 May 26
£18.00 - £35.00
Wimbledon Half Marathon
London
17 May 26
£39.48
3.6
Farmmageddon - 5k - 10k - Half - Full - Ultra - 100 Mile Challenge
Hyde Hall Farm, Buntingford, SG9 0RU
23 May 26 - 24 May 26
£35.00 - £165.00
Midweek Medal Madness - Leon's Birthday Run!
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
29 May 26
£18.00 - £27.00
Circuit du Sore Legs
Wodson Park Sports Centre, Ware, Herts, SG12 0UQ
31 May 26
£29.00 - £38.00
Show me the Manet Marathons & Half Marathon
Milton Keynes, Buckinghamshire
06 Jun 26 - 07 Jun 26
£34.99 - £42.99
4.5
Run Dorney Lake Half Marathon, 10k & 5k - June
Windsor, Berkshire
06 Jun 26
£30.00 - £162.00
4.3
Weybridge 5k, 10k, Half Marathon & Junior Race
Walton-on-Thames, Surrey
07 Jun 26
£16.00 - £162.00
4.8
Bewl Water Summer
Wadhurst, East Sussex
13 Jun 26
£37.36 - £66.01
4.6
ATW St Albans Half Marathon #icelollyrun
Verulamium Park, St Albans AL1 2DL
14 Jun 26
£11.66 - £40.28
5.0
The Hampshire Hoppit - Marathon, Half Marathon, and 10k
Basingstoke, Hampshire
14 Jun 26
£34.00 - £63.00
5.0
MK24 Midsummer RunFest
Milton Keynes, Buckinghamshire
20 Jun 26
£15.00 - £48.00
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
Lee Valley Velo Park - June
London, Greater London
27 Jun 26
£12.00 - £142.00
4.6
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
Run Dorney Lake Half Marathon, 10k & 5k - July
Windsor, Berkshire
12 Jul 26
£30.00 - £162.00
4.3
The Railway Run Marathon, Half Marathon & 50km
Milton Keynes, Buckinghamshire
18 Jul 26
£36.99 - £42.99
Formula One Marathons, Half Marathon & 50km
Milton Keynes, Buckinghamshire
19 Jul 26
£36.99 - £42.99
The Rasselbock 545
Oxford, Oxfordshire
25 Jul 26 - 26 Jul 26
£39.50 - £160.00
Maidenhead Trail Run
Maidenhead, Berkshire
26 Jul 26
£28.00 - £34.00
Run Dorney Lake Half Marathon, 10k & 5k - July
Windsor, Berkshire
26 Jul 26
£30.00 - £162.00
4.3
Showing 161-200 of 223 results