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Half marathons in South East in September 2025

Find half marathons near me in South East 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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The main event of the day! Experience the full selection of the Denbies wine range with six award-winning English wines to try along the course accompanied with food. Your slowest half marathon ever!
  • Sun 7 Sep 2025
  • £67
  • Sun 7 Sep 2025
  • £67
Dorking, Surrey, UK

Bacchus Wine Half Marathon

The main event of the day! Experience the full selection of the Denbies wine range with six award-winning English wines to try along the course accompanied with food. Your slowest half marathon ever!

  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 18 & 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
The award-winning Run Reigate Half Marathon is back and promises a much-loved sell-out event with fantastic scenery, unbeatable atmosphere and a memorable experience!
  • Sun 21 Sep 2025
  • £42
  • Sun 21 Sep 2025
  • £42
Reigate, Surrey, UK

Run Reigate | Half Marathon

The award-winning Run Reigate Half Marathon is back and promises a much-loved sell-out event with fantastic scenery, unbeatable atmosphere and a memorable experience!

  • Chip timing
  • Enter online
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running
A new and unique concept where you turn up ready to conquer a Half Marathon but if you're feeling great tackle a Marathon, or go easy and run a cool 10km depending on how you feel on the day!
  • Sat 27 Sep 2025
  • £52
  • Sat 27 Sep 2025
  • £52
Gerrards Cross, Buckinghamshire, UK

Running Tribe Races | Sep | 32K

A new and unique concept where you turn up ready to conquer a Half Marathon but if you're feeling great tackle a Marathon, or go easy and run a cool 10km depending on how you feel on the day!

  • Enter online
  • Undulating
  • Age 17 & over
  • 32 km multi terrain running
A new and unique concept where you turn up ready to conquer a Half Marathon but if you're feeling great tackle a Marathon, or go easy and run a cool 10km depending on how you feel on the day!
  • Sat 27 Sep 2025
  • £52
  • Sat 27 Sep 2025
  • £52
Gerrards Cross, Buckinghamshire, UK

Running Tribe Races | Sep | Half Marathon

A new and unique concept where you turn up ready to conquer a Half Marathon but if you're feeling great tackle a Marathon, or go easy and run a cool 10km depending on how you feel on the day!

  • Enter online
  • Undulating
  • Age 17 & over
  • 13.1 miles multi terrain running
  • Sun 28 Sep 2025
Deal, Kent, UK

4 Castles Challenge

  • 13.1 miles multi terrain running
  • Sun 28 Sep 2025
Windsor, Berkshire, UK

Windsor Half Marathon

  • 13.1 miles road running

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