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Half marathons in South East

Find half marathons near me in South East for 2025/2026 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Click an event for full event details, location, route, sustainability, what's included and how to enter.

  • Sun 17 Aug
Ryde, Isle of Wight, UK

Isle of Wight Half Marathon

  • 13.1 miles multi terrain running + 183 m ascent
  • Sun 24 Aug
Caterham, Surrey, UK

Woldingham Half and Full Marathon | Half Marathon

  • 13.1 miles trail running + 1619 ft ascent
  • Sat 30 Aug
Walton-on-Thames, Surrey, UK

Summer Marathon & Half Marathon | Half Marathon

  • 13.1 miles trail running
  • Sat 6 Sep
Guildford, Surrey, UK

The Shere 42K, 21K & 10K Multi Terrain Event | 21K

  • 21 km multi terrain running + 543 m ascent
  • Sun 7 Sep
Dorking, Surrey, UK

Bacchus Wine Half Marathon

  • 13.1 miles trail running + 1427 ft ascent
  • Sun 7 Sep
High Wycombe, Buckinghamshire, UK

Bradenham Blast | Half Marathon

  • 21.1 km trail running
  • Sat 20 Sep
Winchester, Hampshire, UK

Guided Half Marathon - Winchester

  • 13.1 miles trail running
  • Sun 21 Sep
Winchester, Hampshire, UK

Winchester Half Marathon | Half Marathon

  • 13.1 miles road running + 841 ft ascent
  • Sun 21 Sep
Reigate, Surrey, UK

Run Reigate | Half Marathon

  • 13.1 miles road running + 174 m ascent
  • Sun 28 Sep
Marlow, Berkshire, UK

The One on the Trail | Marlow | Half Marathon

  • 13.1 miles multi terrain running
  • Sun 28 Sep
Deal, Kent, UK

4 Castles Challenge

  • 13.1 miles multi terrain running
  • Sun 28 Sep
Windsor, Berkshire, UK

Windsor Half Marathon

  • 13.1 miles road running
  • Sun 28 Sep
Horsham, West Sussex, UK

Run Barns Green | Half Marathon

  • 13.1 miles road running
  • Sun 28 Sep
Horsham, West Sussex, UK

Run Barns Green | Kids Colour Run

  • 750 m multi terrain running
  • Sat 4 Oct
Uckfield, East Sussex, UK

London South East Spartan Trifecta Weekend | Beast 21K - Saturday

  • 21 km multi terrain running
  • Sun 5 Oct
Basingstoke, Hampshire, UK

Destination Basingstoke Phillips Law Half Marathon, 10K & 5K | Half Marathon

  • 13.1 miles road running + 872 ft ascent
  • Sun 5 Oct
Farnham, Hampshire, UK

Bolt Round the Holt | Half Marathon

  • 13.1 miles xc running + 1013 ft ascent
  • Sun 5 Oct
Basingstoke, Hampshire, UK

Destination Basingstoke Phillips Law Half Marathon, 10K & 5K | 10K

  • 10 km road running
  • Sun 26 Oct
Walton-on-Thames, Surrey, UK

River Thames Half Marathon

  • 13.1 miles road running
  • Sun 9 Nov
Walton-on-Thames, Surrey, UK

Remembrance Day Marathon & Half Marathon | Half Marathon

  • 13.1 miles trail running
  • Sun 16 Nov
Gosport, Hampshire, UK

Gosport Half Marathon & Fun Runs | Challenge Race 2K

  • 2 km road running
  • Sun 16 Nov
Gosport, Hampshire, UK

Gosport Half Marathon

  • 13.1 miles road running
  • Sun 23 Nov
Walton-on-Thames, Surrey, UK

Riverside Marathon & Half Marathon | Half Marathon

  • 13.1 miles trail running
  • Fri 26 Dec
Egham, Surrey, UK

Boxing Day Challenge | Half Marathon

  • 13.1 miles trail running + 0 ft ascent
  • Sun 28 Dec
Walton-on-Thames, Surrey, UK

Year End Marathon & Half Marathon | Half Marathon

  • 13.1 miles trail running

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