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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
Harrold-Odell Country Park - Bedfordshire. 10km, 25km & 50km Trail Races.
Bedford, Bedfordshire
08 Mar 25
£32.00 - £55.00
🚀Boosted
MK Marathon Weekend
Stadium MK, Stadium Way Milton Keynes, BUCKS MK1 1ST United Kingdom
04 May 25 - 05 May 25
£13.05 - £149.59
Richmond Park June 5k, 10k and Half Marathon
London, Greater London
08 Jun 25
£22.00 - £25.00
4.4
PHOENIX Fridays - Friday the 13th
Sunbury on Thames, Middlesex
13 Jun 25
£26.00 - £33.00
Salisbury Plain Summer Edition
Old Fowler Barracks, Ludgershall road, Ludgershall, SP11 9RR.
14 Jun 25
£40.00 - £60.00
4.4
My Little Care Bear Run
Staines, Middlesex
14 Jun 25
£27.00 - £40.00
SOUTHAMPTON RUNNING FESTIVAL
Southampton, Hampshire
15 Jun 25
£7.00 - £285.60
4.8
The Hampshire Hoppit - Marathon, Half Marathon, and 10k
Basingstoke, Hampshire
15 Jun 25
£31.00 - £59.00
5.0
FINSBURY PARK 5K, 10K & HALF MARATHON
London
15 Jun 25
£30.00 - £142.00
4.3
PHOENIX - Denbies Marathon / Half Marathon
Dorking, Surrey
21 Jun 25 - 22 Jun 25
£39.95
4.5
LEE VALLEY VELOPARK 1 MILE, 5K, 10K, 10 MILE & HALF MARATHON
London, Greater London
21 Jun 25
Free - £122.00
4.6
PHOENIX - Minotaur 50 Mile Ultra, Hydra 75 Mile Ultra & Centaur 100 Mile Ultra
Dorking, Surrey
21 Jun 25
£74.95 - £134.95
Midsummer Murder Trail Race
Henley-on-Thames, Oxfordshire
22 Jun 25
£27.00 - £29.00
5.0
The One to the Castle - Windsor
Windsor, Berkshire
22 Jun 25
£35.00
Dunstable Downs Half Marathon
Dunstable, Bedfordshire
22 Jun 25
£32.00
4.8
RunThrough Wimbledon Common Half Marathon & 10k
London, Greater London
22 Jun 25
£32.00 - £162.00
4.9
PHOENIX Fridays - Retro Run Friday
Walton-on-Thames, Surrey
27 Jun 25
£26.00 - £33.00
Cock-a-doodle Dawdle
Hyde Hall Farm, Buntingford, SG9 0RU
28 Jun 25
£25.00 - £37.50
Midweek Chasing Numbers July 2025
Egham, Surrey
04 Jul 25
£24.00 - £34.00
PHOENIX Fridays - Independence Friday
Walton-on-Thames, Surrey
04 Jul 25
£26.00 - £33.00
Jaws 50th Anniversary Marathons & Half Marathon
Milton Keynes, Buckinghamshire
05 Jul 25
£34.99 - £44.99
The Fix Addiction 5k, 10k and Half Marathon
Windsor, Buckinghamshire
05 Jul 25
£22.00 - £25.00
5.0
Running GP at Goodwood Motor Circuit Races & Duathlons July
Chichester, West Sussex
06 Jul 25
£28.00 - £232.00
Chiltern Ridge Half Marathon
Aylesbury, Buckinghamshire
06 Jul 25
£32.00
4.3
Richmond Park Half Marathon
London
06 Jul 25
£42.00 - £182.00
4.4
The Richmond Summer Riverside 10k and Half Marathon Run
Richmond, Greater London
06 Jul 25
£22.00 - £25.00
5.0
Live Aid 40th Anniversary Marathon Half Marathon & 50km
Milton Keynes, Buckinghamshire
12 Jul 25 - 13 Jul 25
£34.99 - £42.99
RUN DORNEY 5K, 10K & HALF MARATHON
Windsor, Berkshire
13 Jul 25
£30.00 - £162.00
4.2
Ciderthon: Half Marathon & 5K
Henley-on-Thames, Hambleden, Buckinghamshire
19 Jul 25
£30.00 - £47.00
Hughenden Valley Half & 10K
High Wycombe, Buckinghamshire
19 Jul 25
£22.00 - £32.00
4.6
Run Whitstable & Herne Bay Summer 5k, 10k and half marathon
Herne Bay, Kent
19 Jul 25 - 20 Jul 25
£10.00 - £25.00
Richmond Park July 5k,10k and Half Marathon
London, Greater London
20 Jul 25
£22.00 - £25.00
4.4
PHOENIX Fridays - Fellowship of the Run Friday
Walton-on-Thames, Surrey
25 Jul 25
£26.00 - £33.00
RunThrough Wimbledon Common Half Marathon & 10k
London, Greater London
27 Jul 25
£32.00 - £162.00
4.9
RUN DORNEY 5K, 10K & HALF MARATHON
Windsor, Berkshire
27 Jul 25
£30.00 - £162.00
4.2
Midweek Chasing Numbers Aug 2025
Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
01 Aug 25
£27.00 - £35.00
Football League Original 12 Run
Milton Keynes, Buckinghamshire
02 Aug 25 - 03 Aug 25
£34.99 - £42.99
RUN DORNEY 5K, 10K & HALF MARATHON
Windsor, Berkshire
09 Aug 25
£30.00 - £162.00
4.2
PHOENIX - Prosecco Run
Dorking, Surrey
10 Aug 25
£22.00 - £39.95
5.0
Richmond Park Half Marathon
London
10 Aug 25
£42.00 - £182.00
4.4
Richmond Park August 5k, 10k and Half Marathon
London, Greater London
17 Aug 25
£22.00 - £25.00
4.4
LEE VALLEY VELOPARK 1 MILE, 5K, 10K, 10 MILE & HALF MARATHON
London, Greater London
23 Aug 25
Free - £122.00
4.6
Showing 121-160 of 244 results