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Flat Half marathons in East of England in March 2026

Find flat half marathons in East of England in March 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 13.1 unforgettable miles through Cambridge’s historic streets and iconic University grounds on a flat, fast-paced course perfect for supporting a charity cause and chasing a personal best.
  • Sun 8 Mar 2026
  • £20-£35
  • 7 charities
Cambridge, Cambridgeshire, UK

TTP Cambridge Half Marathon

Run 13.1 unforgettable miles through Cambridge’s historic streets and iconic University grounds on a flat, fast-paced course perfect for supporting a charity cause and chasing a personal best.

  • Recycling
  • Newcomers
  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Fancy dress
  • Event village
  • Urban
  • Park
  • Rural
  • Sustainability policy
  • Public transport links
  • Age 17 & over
  • 13.1 miles road running
Smash your personal best on a traffic-free, flat and fast course from the White Water Centre and into surrounding beautiful regional parkland with a custom-designed medal for finishers.
  • Sun 22 Mar 2026
  • £32-£34
Waltham Cross, Hertfordshire, UK

ATW Run Fest at Lee Valley | Half Marathon

Smash your personal best on a traffic-free, flat and fast course from the White Water Centre and into surrounding beautiful regional parkland with a custom-designed medal for finishers.

  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running + 79 ft ascent

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