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Half marathons in South East

Find half marathons in South East in 2025/2026 - 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 9 May 2026
Windsor, Buckinghamshire, UK

The All Nations 5K, 10K and Half Marathon Run | Half Marathon

  • 13.1 miles road running
  • Sun 10 May 2026
Reading, Berkshire, UK

Goring Gap Trails | Run - Half Marathon

  • 13.1 miles trail running + 102 m ascent
  • Sat 16 May 2026
Henley-on-Thames, Buckinghamshire, UK

London West Spartan Trifecta Weekend | Beast 21K

  • 21 km multi terrain running
  • Sat 23 May 2026
Eastbourne, East Sussex, UK

Seven Sisters Half Marathon

  • 13.1 miles trail running + 2057 ft ascent
  • Sun 7 Jun 2026
Lewes, East Sussex, UK

Weald Challenge

  • 22 km trail running
  • Sun 14 Jun 2026
Kingsclere, Hampshire, UK

The Hampshire Hoppit | Half Marathon

  • 13.1 miles trail running + 330 m ascent
  • Sun 5 Jul 2026
Aylesbury, Buckinghamshire, UK

Chiltern Ridge Half Marathon

  • 21.3 km trail running + 526 m ascent
  • Sat 18 Jul 2026
Henley-on-Thames, Buckinghamshire, UK

The Ciderthon

  • 13.1 miles multi terrain running
  • Sun 13 Sep 2026
Dorking, Surrey, UK

Bacchus Wine Half Marathon

  • 13.1 miles trail running + 1427 ft ascent
  • Sun 13 Sep 2026
Brockenhurst, Hampshire, UK

The Garmin New Forest Marathon | Half Marathon

  • 13.1 miles multi terrain running + 150 ft ascent
  • Sun 20 Sep 2026
Winchester, Hampshire, UK

Winchester Half Marathon | Half Marathon

  • 13.1 miles road running + 841 ft ascent
  • Sun 27 Sep 2026
Horsham, West Sussex, UK

Run Barns Green

  • Fun run
  • 5K run
  • 10K run
  • Half marathon
  • Sat 3 Oct 2026
Lewes, East Sussex, UK

Dark Downs Half Marathon

  • 13.8 miles trail running + 1686 ft ascent
  • Sun 4 Oct 2026
Basingstoke, Hampshire, UK

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

  • 13.1 miles road running + 872 ft ascent

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