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Flat Marathons in UK in October 2026

Find flat marathons in UK in October 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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Previously rated one of the top 10 UK marathons by Runners World! Stunningly scenic riverside routes along the Thames towpath. Flat, fast and very runnable with great runner support.
  • Sun 4 Oct 2026
  • £53-£55
London, UK

Thames Meander Autumn | Marathon

Previously rated one of the top 10 UK marathons by Runners World! Stunningly scenic riverside routes along the Thames towpath. Flat, fast and very runnable with great runner support.

  • Chip timing
  • Enter online
  • Flat
  • Age 18 & over
  • 26.2 miles trail running + 600 ft ascent
Enjoy stunning coastal views on this flexible-distance run at Milford on Sea, following an out-and-back route beside Sturt Pond and the Isle of Wight — perfect for all abilities.
  • Sun 25 Oct 2026
  • £37.50-£39.50
Lymington, Hampshire, UK

Wight Lines

Enjoy stunning coastal views on this flexible-distance run at Milford on Sea, following an out-and-back route beside Sturt Pond and the Isle of Wight — perfect for all abilities.

  • Beginner-friendly
  • Enter online
  • Flat
  • Event village
  • Coast
  • Public transport links
  • Age 18 & over
  • 7 hrs trail running + 47 ft ascent
A Halloween-themed marathon you won't want to miss, bringing together runners of all abilities to share memories in what they love to do. Reach the finish to enjoy tasty Halloween treats.
  • Sat 31 Oct 2026
  • £39-£41
Leeds, West Yorkshire, UK

Hubble Bubble & Ghostly 1 Mile | Marathon

A Halloween-themed marathon you won't want to miss, bringing together runners of all abilities to share memories in what they love to do. Reach the finish to enjoy tasty Halloween treats.

  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 18 & over
  • 26.2 miles trail running + 288 ft ascent
  • Sun 18 Oct 2026
York, North Yorkshire, UK

Yorkshire Marathon Festival

  • Marathon 2
  • 10 miler

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