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Road Half marathons in South East in March 2026

Find road 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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Join the UK's Happiest Half - a fast, flat race with a buzzing Brighton atmosphere. An early season major half and one of the most popular races in the UK!
  • Sun 1 Mar
  • £20-£35
Brighton, East Sussex, UK

ALTRA Brighton Half Marathon

Join the UK's Happiest Half - a fast, flat race with a buzzing Brighton atmosphere. An early season major half and one of the most popular races in the UK!

  • 13.1 miles road running
Come and join in for Dashing Dog Charity run along the picturesque River Thames, not only is the scenery beautiful and you will earn one of the awesome medals for your half marathon!
  • Sun 22 Mar
  • £25-£40
Staines, Surrey, UK

The Dashing Dog Charity Run | Half Marathon

Come and join in for Dashing Dog Charity run along the picturesque River Thames, not only is the scenery beautiful and you will earn one of the awesome medals for your half marathon!

  • 13.1 miles road running
This is the race you'll want to keep racing, year after year. Explore the delights of the Hastings Half Marathon as it twists and turns through the historic town of Hastings and beyond.
  • Sun 22 Mar
  • £37-£39
Saint Leonards-on-sea, East Sussex, UK

Hastings Half Marathon

This is the race you'll want to keep racing, year after year. Explore the delights of the Hastings Half Marathon as it twists and turns through the historic town of Hastings and beyond.

  • 13.1 miles road running + 961 ft ascent
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
  • £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.

  • 13.1 miles road running
  • Sun 8 Mar
  • £34-£36
Eastbourne, East Sussex, UK

Eastbourne Half Marathon

  • 13.1 miles road running + 166 m ascent
  • Sun 8 Mar
  • £25-£29
Southampton, Hampshire, UK

Solent Half Marathon

  • 13.1 miles road running
  • Sun 8 Mar
  • £28-£40
Tonbridge, Kent, UK

Lambert & Foster Paddock Wood Half Marathon

  • 13.1 miles road running
  • Sun 15 Mar
  • £34-£37
Milton Keynes, Buckinghamshire, UK

Milton Keynes Festival of Running | Half Marathon

  • 13.1 miles road running
  • Sun 22 Mar
  • £30-£35
Herne Bay, Kent, UK

Run Whitstable & Herne Bay Spring 5K, 10K and Half Marathon | Half Marathon

  • 13.1 miles road running
  • Sun 22 Mar
  • £25
Redhill, Surrey, UK

Y2Y North Downs Trek / Run | Half Marathon Run

  • 14 miles road running
  • Sun 22 Mar
  • £51-£53
Reading, Berkshire, UK

Green Park Reading Half Marathon

  • 13.1 miles road running
  • Sun 29 Mar
  • £30-£32
Fleet, Hampshire, UK

Fleet Half Marathon

  • 13.1 miles road running
  • Sun 29 Mar
  • £27-£30
Wantage, Oxfordshire, UK

White Horse Half Marathon

  • 13.1 miles road running
  • Sun 29 Mar
  • £30-£40
Margate, Kent, UK

Kent Coastal Half Marathon & 10K | Half Marathon

  • 13.1 miles road running

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