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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 :-)


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London

Race Calendar: Half Marathons In the South East

🚀Boosted

The Hampshire Hoppit - Marathon, Half Marathon, and 10k

Basingstoke, Hampshire
Sun 14 Jun 26
£34.00 - £63.00
5.0
🚀Boosted

TrailFest - Salcey Forest

Salcey Forest, Northamptonshire
Sun 28 Jun 26
£22.00 - £64.00
🚀Boosted

Run Bournemouth

Bournemouth, Dorset
Sat 10 Oct 26 - Sun 11 Oct 26
£15.50 - £46.25
4.5

Run Dorney Lake Evening Runs 10k & 5k August

Windsor, Berkshire
Wed 26 Aug 26
£30.00 - £142.00
5.0

Windsor Trail Run

Windsor, Berkshire
Sun 30 Aug 26
£37.00 - £44.00

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

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

Bewl Water Autumn

Wadhurst, East Sussex
Sat 12 Sep 26
£37.36 - £66.01
4.6

Flying Scotsman Marathons & Half Marathons

Milton Keynes, Buckinghamshire
Sat 12 Sep 26 - Sun 13 Sep 26
£34.99 - £41.99

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
5.0

Basildon Half Marathon

Basildon, Essex
Sun 13 Sep 26
£12.00 - £38.00
5.0

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

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

Windsor, Berkshire
Sat 26 Sep 26
£30.00 - £162.00
4.4

Battersea Park 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
£19.00 - £36.00
5.0

Windsor Half Marathon 2026

Windsor, Windsor and Maidenhead
Sun 27 Sep 26
£44.00 - £48.00
4.8

Ealing Half Marathon 2026

London
Sun 27 Sep 26
£45.37 - £47.37

Folkestone Rotary Half Marathon

The Grand, The Leas, Folkestone, Kent,CT20 2XL
Sun 27 Sep 26
£5.58 - £33.78

Hever Castle Run Series

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

Midweek Chasing Numbers Oct 2026

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
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

Windsor, Berkshire
Sat 03 Oct 26
£30.00 - £162.00
4.4

Victoria Park Half Marathon, 10k & 5k

London
Sat 03 Oct 26
£30.00 - £38.00
4.7

The Maverick South Downs Trail

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

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

Kingston Half Marathon 2026

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

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

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

Epping Forest Half Marathon & 10K Wildwood Trail Series

London
Sat 10 Oct 26
£24.00 - £34.00
Showing 121-160 of 254 results
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