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Flat Half marathons in South East in March 2026

Find flat half marathons in South East 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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A delectable racing experience perfect for those planning a spring marathon, over a pancake flat course using the wide, quiet country lanes surrounding the marsh town of Lydd in Kent.
  • Sun 29 Mar 2026
  • £31
Romney Marsh, Kent, UK

Brett Lydd Half Marathon

A delectable racing experience perfect for those planning a spring marathon, over a pancake flat course using the wide, quiet country lanes surrounding the marsh town of Lydd in Kent.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 17 & over
  • 13.1 miles road running + 104 ft ascent
  • Sun 8 Mar 2026
Tonbridge, Kent, UK

Lambert & Foster Paddock Wood Half Marathon

  • 13.1 miles road running
  • Sun 15 Mar 2026
Milton Keynes, Buckinghamshire, UK

Milton Keynes Festival of Running | Half Marathon

  • 13.1 miles road running
  • Sun 22 Mar 2026
Milton Keynes, Buckinghamshire, UK

Twin Lakes 20 | 20 Mile

  • 20 miles multi terrain running

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