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Flat Marathons in August 2026

Find flat marathons near me in August 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 9 Aug 2026
  • £53-£55
London, UK

Thames Meander Summer | 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 a trip up the Leeds and Liverpool Canal this summer over a range of distances, all along the flat and even towpath. This event is perfect for runners of all abilities.
  • Sat 15 Aug 2026
  • £38-£42
Shipley, West Yorkshire, UK

Sir Titus Summer Trot | Marathon

Enjoy a trip up the Leeds and Liverpool Canal this summer over a range of distances, all along the flat and even towpath. This event is perfect for runners of all abilities.

  • Chip timing
  • Enter online
  • Flat
  • Age 18 & over
  • 26.2 miles trail running + 506 ft ascent
Soak up summer miles on a flat, fast canal towpath, with great support, generous treats and distances for every runner including marathon — a Yorkshire day out to remember.
  • Sat 22 Aug 2026
  • £40-£42
Leeds, West Yorkshire, UK

Summer Extravaganza | Marathon

Soak up summer miles on a flat, fast canal towpath, with great support, generous treats and distances for every runner including marathon — a Yorkshire day out to remember.

  • Enter online
  • Flat
  • Age 18 & over
  • 26.2 miles trail running
  • Sat 22 Aug 2026
Reykjavík, Iceland

Islandsbanki Reykjavik Marathon | Marathon

  • 42.2 km road running
  • Sun 30 Aug 2026
Longford, Ireland

Abbott Longford Marathon | Marathon

  • 42.2 km road running

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