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Half Marathons Found in the South East

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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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London

Race Calendar: Half Marathons In the South East

🚀Boosted

Folkestone Rotary Half Marathon

The Grand, The Leas, Folkestone, Kent,CT20 2XL
28 Sep 25
£4.56 - £32.74
4.0
🚀Boosted

Windsor Half Marathon 2025

Windsor, Windsor and Maidenhead
28 Sep 25
£44.00 - £48.00
4.7
🚀Boosted

Run Bournemouth

Bournemouth, Dorset
11 Oct 25 - 12 Oct 25
£15.00 - £44.75
4.5
🚀Boosted

THAMES PATH TRAIL RUN

Windsor, Berkshire
26 Oct 25
£35.00 - £40.00

ATW Bedford Running Festival

Russell Park, The Embankment, Bedford MK40 3RH
06 Sep 25 - 07 Sep 25
£12.72 - £42.40

PHOENIX - Summer Sun - Day 9

Gravesend, Kent
06 Sep 25
£39.95

The Shere 42k, Half Marathon & 10k

Shere Recreation Ground, Upper Street, Shere, Surrey, GU5 9JF
06 Sep 25
£27.50 - £80.00
4.5

Richmond Park September 5k, 10k and Half Marathon

London, Greater London
07 Sep 25
£25.00 - £30.00
4.4

PHOENIX - Summer Sun - Day 10

Gravesend, Kent
07 Sep 25
£39.95

RunThrough Wimbledon Common Half Marathon & 10k

London, Greater London
07 Sep 25
£32.00 - £162.00
4.9

Run2Paris September 2025

London
10 Sep 25 - 14 Sep 25
£950.00

Midweek Chasing Numbers September

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
12 Sep 25
£18.00 - £27.00
5.0

Bewl Water Autumn

Wadhurst
13 Sep 25
£37.36 - £66.01
4.6

Coronation Scot Marathons & Half Marathon

Milton Keynes, Buckinghamshire
13 Sep 25 - 14 Sep 25
£32.99 - £42.99

PHOENIX - Dragon's Eye Race 2

Cranleigh, Surrey
14 Sep 25
£27.00 - £40.00
4.7

Basildon Half Marathon & Juniors

Basildon, Essex
14 Sep 25
£7.00 - £34.00

PHOENIX Fridays - Flying Feet Friday 2025

Walton-on-Thames, Surrey
19 Sep 25
£26.00 - £33.00

PHOENIX - Seahorse Run 2025

Walton-on-Thames, Surrey
20 Sep 25
£22.00 - £40.00

PHOENIX - Bumblebee Run 2025

Walton-on-Thames, Surrey
21 Sep 25
£22.00 - £40.00

Fraggle Run

The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
21 Sep 25
£18.00 - £35.00

Richmond Park Half Marathon

London
21 Sep 25
£42.00 - £182.00
4.4

Run Reigate 5k, 10k, Half Marathon & Kids Race

Reigate, Surrey
21 Sep 25
£19.00 - £44.00

Winchester Half Marathon

Winchester City Centre
21 Sep 25
£10.82 - £47.97
5.0

PHOENIX Fridays - The Run and Only Friday 2025

Walton-on-Thames, Surrey
26 Sep 25
£26.00 - £33.00

Battersea Park Half Marathon Presented by TREK

London
27 Sep 25
£40.00 - £182.00
4.8

Romp Run

The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
27 Sep 25
£18.00 - £35.00

PHOENIX - Hot Lips Run

Walton-on-Thames, Surrey
27 Sep 25
£22.00 - £40.00

RUN DORNEY 5K, 10K & HALF MARATHON

Windsor, Berkshire
27 Sep 25
£30.00 - £162.00
4.2

Street Child - Craft Half & 10K

London
28 Sep 25
£25.00 - £40.00

Swindon Half Marathon Presented By Voltarol

Swindon
28 Sep 25
£42.00 - £182.00

Hever Castle Run Series

Edenbridge, Kent
28 Sep 25
£35.00 - £65.00
4.2

Offer

10% OFF

Ealing Half Marathon

London, Greater London
28 Sep 25
£50.00

The One on the Trail - Marlow

Marlow
28 Sep 25
£10.00 - £35.00

Richmond Park Half Marathon

Richmond Park, Sheen Gate Car Park Area. TW10 5HT
28 Sep 25
£53.28

Folkestone Rotary Half Marathon

The Grand, The Leas, Folkestone, Kent,CT20 2XL
28 Sep 25
£4.56 - £32.74
4.0

ATW Welwyn Half Marathon & 10k

Gosling Sports Park, Stanborough Road, Welwyn Garden City, Hertfordshire, AL8 6XE
28 Sep 25
£30.74 - £39.22

Windsor Half Marathon 2025

Windsor, Windsor and Maidenhead
28 Sep 25
£44.00 - £48.00
4.7

PHOENIX - Space Race - 2025

Walton-on-Thames, Surrey
28 Sep 25
£22.00 - £40.00

Run Barns Green Half Marathon, 10K and 5k

Horsham, West Sussex
28 Sep 25
£17.50 - £34.00
5.0

Midweek Chasing Numbers Oct 2025

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
03 Oct 25
£18.00 - £27.00
5.0

PHOENIX Fridays - Frisky Phoenix Friday 2025

Walton-on-Thames, Surrey
03 Oct 25
£26.00 - £33.00

RUN DORNEY 5K, 10K & HALF MARATHON

Windsor, Berkshire
04 Oct 25
£30.00 - £162.00
4.2

VICTORIA PARK 5K, 10K & HALF MARATHON

London
04 Oct 25
£28.00 - £162.00
4.7

Thames Meander Autumn

Petersham & Ham Sea Scouts HQ, Douglas House Meadow, Richmond, TW10 7AH
05 Oct 25
£37.36 - £58.59
4.5
Showing 41-80 of 219 results
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