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Half Marathons Found in the South East

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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

London

Race Calendar: Half Marathons In the South East

🚀Boosted

The Hurt

Guildford, Surrey
Sat 10 Oct 26
£31.00 - £35.00
🚀Boosted

Running Tribe Races

Course 1,2,3 are at - Chalfont Park Sports Club Chalfont Park, SL9 0QA. Course 4,5,6,12 are at - Chalfont St. Peter Community Centre , SL9 9QX. Course - 7,8   are at - Amersham Cricket Club, Missenden Rd, Old Amersham, Bucks, HP7 0RN Course - 9   is at - Sarratt Village Hall, The Green, Sarratt,,Nr Rickmansworth, Herts WD3 6AS Course - 10,11 are at - Chesham & District Community Association, White Hill Centre, White Hill, Chesham,  Bucks, HP5 1AG.
Sun 25 Oct 26
£40.00
🚀Boosted

Whitstable & Herne Bay 1.5k, 5k, 10k & Half Marathon MoRun

Herne Bay, Kent
Sat 07 Nov 26
£15.00 - £35.00
4.9

Run the Thames Bridges - half marathon

London
Fri 16 Feb 24 - Thu 31 Dec 26
£17.00 - £24.00
5.0

Run the Ghost Tubes - Half Marathon & 10K

London
Tue 01 Oct 24 - Thu 31 Dec 26
£14.00 - £17.00
4.3

Henry VIII's Wives Half Marathon

London
Sun 01 Feb 26 - Thu 31 Dec 26
£17.00

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

Chas Avis Harvest Trail

Royston, Hertfordshire
Sun 20 Sep 26
£21.00

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
£36.00 - £42.00
4.8

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
£55.89 - £57.89

Folkestone Rotary Half Marathon

The Grand, The Leas, Folkestone, Kent,CT20 2XL
Sun 27 Sep 26
£5.58 - £34.83

Hever Castle Run Series

Edenbridge, Kent
Sun 27 Sep 26
£37.63 - £69.88
4.2

Manet Too Tight to Mention Marathons & Half Marathon

Milton Keynes, Buckinghamshire
Thu 01 Oct 26
£26.99 - £42.99

Midweek Chasing Numbers Oct 2026

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 02 Oct 26
£18.00 - £27.00

Think Pink Day 1

Fareham, Hampshire
Sat 03 Oct 26
£39.95

Run Dorney Lake Half Marathon, 10k & 5k - October

Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJ
Sat 03 Oct 26
£29.68 - £36.04
4.4

Victoria Park Half Marathon, 10k & 5k

London
Sat 03 Oct 26
£30.00 - £38.00
4.7

The Maverick South Downs Trail 2026

Horndean, Hampshire
Sat 03 Oct 26
£9.10 - £92.84

PHOENIX West Sussex - Swan Around

Crawley, West Sussex
Sun 04 Oct 26
£22.00 - £39.95

Kingston Half Marathon 2026

Kingston upon Thames, Surrey
Sun 04 Oct 26
£44.50
5.0

Southampton Half Marathon, 10K, 5K & Junior

Southampton, Hampshire
Sun 04 Oct 26
£11.00 - £38.00
5.0

CHICHESTER HALF MARATHON

Chichester, West Sussex
Sun 04 Oct 26
£39.50 - £44.50

RUN KENT HALF MARATHON, 10K & 5K

Tonbridge, Kent
Sun 04 Oct 26
£32.00 - £40.00
4.8

Think Pink Day 2

Fareham, Hampshire
Sun 04 Oct 26
£39.95

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

Thames Meander Autumn

Richmond, Greater London
Sun 04 Oct 26
£37.36 - £58.59
4.1

ATW Welwyn Half Marathon & 10k

Gosling Sports Park, Stanborough Road, Welwyn Garden City, Hertfordshire, AL8 6XE
Sun 04 Oct 26
£34.98 - £43.46
5.0

PHOENIX - Water Dragon

Walton-on-Thames, Surrey
Sun 04 Oct 26
£22.00 - £40.00

PHOENIX - Ghost Train

Walton-on-Thames, Surrey
Sat 10 Oct 26
£22.00 - £40.00

Epping Forest Half Marathon & 10K Wildwood Trail Series

London
Sat 10 Oct 26
£27.00 - £37.00
Showing 1-40 of 288 results
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