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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.

  • Sat 19 Jul
Henley-on-Thames, Buckinghamshire, UK

The Ciderthon

  • 13.1 miles multi terrain running
  • Sat 30 Aug
Walton-on-Thames, Surrey, UK

Summer Marathon & Half Marathon | Half Marathon

  • 13.1 miles trail running
  • Sun 7 Sep
Dorking, Surrey, UK

Bacchus Wine Half Marathon

  • 13.1 miles trail running
  • Sat 20 Sep
Winchester, Hampshire, UK

Guided Half Marathon - Winchester

  • 13.1 miles trail running
  • Sun 21 Sep
Reigate, Surrey, UK

Run Reigate | Half Marathon

  • 13.1 miles road 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
  • Sat 4 Oct
Uckfield, East Sussex, UK

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

  • 21 km multi terrain running
  • Sun 9 Nov
Walton-on-Thames, Surrey, UK

Remembrance Day Marathon & Half Marathon | Half Marathon

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

Riverside Marathon & Half Marathon | Half Marathon

  • 13.1 miles trail running
  • Sun 28 Dec
Walton-on-Thames, Surrey, UK

Year End Marathon & Half Marathon | Half Marathon

  • 13.1 miles trail running

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