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Half marathons in East Sussex in September 2025

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

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Join the UK's Happiest Half - a fast, flat race with a buzzing Brighton atmosphere. An early season major half and one of the most popular races in the UK!
  • Sun 2 Mar 2025
  • £42.75-£44.75
  • 4 charities
  • Sun 2 Mar 2025
  • £42.75-£44.75
  • 4 charities
Brighton, East Sussex, UK

Rubix VT Brighton Half Marathon

Join the UK's Happiest Half - a fast, flat race with a buzzing Brighton atmosphere. An early season major half and one of the most popular races in the UK!

  • Chip timing
  • Enter online
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon on the same day was previously rated one of the top UK marathons.
  • Sat 10 May 2025
  • £43-£45
  • Sat 10 May 2025
  • £43-£45
Wadhurst, East Sussex, UK

Bewl Water Spring | Half Marathon

Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon on the same day was previously rated one of the top UK marathons.

  • Chip timing
  • Enter online
  • Hilly
  • Age 17 & over
  • 13.1 miles trail running
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon course was previously rated one of the top UK marathons.
  • Sat 13 Sep 2025
  • £43-£45
  • Sat 13 Sep 2025
  • £43-£45
Wadhurst, East Sussex, UK

Bewl Water Autumn | Half Marathon

Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon course was previously rated one of the top UK marathons.

  • Chip timing
  • Enter online
  • Undulating
  • Age 17-80
  • 13.1 miles trail running
  • Sat 5 Oct
Uckfield, East Sussex, UK

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

  • 21 km multi terrain running
  • Sat 5 Oct
Uckfield, East Sussex, UK

London South East Spartan Trifecta Weekend | Sprint 5K - Saturday

  • 5 km multi terrain running
  • Sun 27 Oct
Eastbourne, East Sussex, UK

Beachy Head Marathon | Half Marathon

  • 13.1 miles trail running
  • Sat 9 Nov
Bexhill-on-Sea, East Sussex, UK

GBR Run Bexhill Remembrance Run | Half Marathon

  • 13.1 miles road running
  • Sat 7 Dec
Lewes, East Sussex, UK

Sussex Downs Trail Run | 21K

  • 21 km trail running
  • Sun 23 Feb 2025
Eastbourne, East Sussex, UK

Eastbourne Half Marathon

  • 13.1 miles road running

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