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Flat Road runs in South East in Autumn

Find flat road runs in South East in Autumn - 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
Runners will enjoy the fast, flat and beautiful route through University Parks and the historic Oxford City Centre whilst celebrating running and movement with entertainment and cheering fans!
  • Sun 11 Oct 2026
  • £15-£117
  • 7 charities
Oxford, Oxfordshire, UK

Oxford Half Marathon

Runners will enjoy the fast, flat and beautiful route through University Parks and the historic Oxford City Centre whilst celebrating running and movement with entertainment and cheering fans!

  • Carbon neutral
  • Venue accessible
  • Recycling
  • Beginner-friendly
  • Entertainment
  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Fancy dress
  • Event village
  • Urban
  • Park
  • Sustainability policy
  • Public transport links
  • Age 16 & over
  • 13.1 miles road running
Probably the world’s favourite 10 mile running event with inspiring history, salty air and glorious sea views guaranteed! Local supporters will keep your spirits and motivation up the whole way.
  • Sun 18 Oct 2026
  • £45-£53
  • 5 charities
Portsmouth, Hampshire, UK

Great South Run

Probably the world’s favourite 10 mile running event with inspiring history, salty air and glorious sea views guaranteed! Local supporters will keep your spirits and motivation up the whole way.

  • Families
  • Trees not tees
  • Venue accessible
  • Beginner-friendly
  • Entertainment
  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Fancy dress
  • Event village
  • Urban
  • Coast
  • Sustainability policy
  • Public transport links
  • Age 16 & over
  • 10 miles road running
  • Sun 4 Oct 2026
Basingstoke, Hampshire, UK

Destination Basingstoke Phillips Law Half Marathon, 10K & 5K | Children's Races

  • 1 mile road running + 19 ft ascent
  • Sun 11 Oct 2026
Ashford, Kent, UK

Givaudan Ashford 10K

  • 10 km road running

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