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Flat Road runs in South East in September 2026

Find flat road runs in South East in September 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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Run for fun at the Windsor Half Marathon! A short run for ages 5-9 on the grass alongside the Long Walk which you can come and enter on the day.
  • Sun 27 Sep 2026
  • £0.50
Windsor, Berkshire, UK

Windsor Half Marathon | Sprite Sprint

Run for fun at the Windsor Half Marathon! A short run for ages 5-9 on the grass alongside the Long Walk which you can come and enter on the day.

  • Flat
  • Traffic free
  • Fancy dress
  • Age 5-9
  • 40 m road running
This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.
  • Sun 27 Sep 2026
  • £25-£27
Folkestone, Kent, UK

Folkestone Rotary Half Marathon

This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 17 & over
  • 13.1 miles road running + 469 ft ascent

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