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Half marathons in South East

Find half marathons in South East in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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  • Sat 27 Jun
  • £35-£45
Winchester, Hampshire, UK

Gravel Rush, Winchester | 21K Half Marathon

  • 21 km trail running
  • Sun 5 Jul
  • £30-£32
Aylesbury, Buckinghamshire, UK

Chiltern Ridge Half Marathon

  • 21.3 km trail running + 526 m ascent
  • Sat 18 Jul
  • £50
Henley-on-Thames, Buckinghamshire, UK

The Ciderthon

  • 13.1 miles multi terrain running
  • Sun 9 Aug
  • £26.80-£32
Slough, Buckinghamshire, UK

Burnham Beeches Half Marathon and 10K | Half Marathon

  • 13.1 miles multi terrain running
  • Sun 13 Sep
  • £69
Dorking, Surrey, UK

Bacchus Wine Half Marathon

  • 13.1 miles trail running + 1427 ft ascent
  • Sun 13 Sep
  • £51-£53
Brockenhurst, Hampshire, UK

The Garmin New Forest Marathon | Half Marathon

  • 13.1 miles multi terrain running + 150 ft ascent
  • Sun 27 Sep
  • £8-£28.50
Horsham, West Sussex, UK

Run Barns Green

  • Fun run
  • 5K run
  • 10K run
  • Half marathon
  • Sat 3 Oct
  • £44-£46
Lewes, East Sussex, UK

Dark Downs Half Marathon

  • 13.8 miles trail running + 1686 ft ascent
  • Sun 4 Oct
  • From £30.40
Basingstoke, Hampshire, UK

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

  • 13.1 miles road running + 872 ft ascent
  • Sun 4 Oct
  • £35
Stockbridge, Hampshire, UK

Clarendon Marathon | Half Marathon

  • 13 miles multi terrain running
  • Sun 18 Oct
  • £30-£40
Maidstone, Kent, UK

Maidstone Half Marathon

  • 13.1 miles road running
  • Sun 25 Oct
  • £35-£37
Walton-on-Thames, Surrey, UK

River Thames Half Marathon

  • 13.1 miles road running
  • Sun 25 Oct
  • £32-£34
Windsor, Buckinghamshire, UK

Windsor Dorney Lakeside Half Marathon

  • 13.1 miles road running

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