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Half marathons in London in March 2026

London is home to some of the UK’s most iconic half marathons, attracting runners from across the world to race through the capital’s historic streets and famous landmarks. From Tower Bridge to Buckingham Palace, a London half marathon is more than just 13.1 miles — it’s an unforgettable experience.

The city offers something for everyone, whether you’re chasing a personal best on a fast, closed-road course or taking in the atmosphere of charity-focused runs through London’s parks and riverside routes. With excellent transport links, world-class organisation and huge crowds lining the streets, it’s no wonder these events sell out fast.

On this page you’ll find a full list of upcoming London half marathons, along with details on how to get involved. If you’d like to run for charity, take a look at our charity half marathons in London page and if you'd like to explore races further afield, head to our half marathons guide. Otherwise, scroll down to discover the best half marathons London has to offer and start your journey to the start line.

Find events near me in March 2026 - filter by date or location, display on a map or use the advanced search to find your perfect race.

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Experience an unforgettable half marathon through the regal grounds of Hampton Court Palace.
  • Sun 15 Mar 2026
  • £20-£57
East Molesey, UK

Hampton Court Palace Half Marathon

Experience an unforgettable half marathon through the regal grounds of Hampton Court Palace.

  • Recycling
  • Newcomers
  • Chip timing
  • Enter online
  • Flat
  • Event village
  • Urban
  • Park
  • Rural
  • Free venue entry
  • Sustainability policy
  • Public transport links
  • Age 17 & over
  • 13.1 miles multi terrain running
The Kew Half Marathon starts inside Kew Gardens and every runner will receive a fantastic medal, a technical running t-shirt (male and female cut) and free entry into the gardens!
  • Sun 29 Mar 2026
  • £45.50-£52.50
Richmond, UK

Kew Gardens Half Marathon

The Kew Half Marathon starts inside Kew Gardens and every runner will receive a fantastic medal, a technical running t-shirt (male and female cut) and free entry into the gardens!

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running + 85 m ascent
Lace up your trainers and RUN Battersea Park Half which will be a scenic and energising experience on a pancake-flat course for all abilities with beautiful views of green spaces and the River Thames.
  • Sun 29 Mar 2026
  • £29-£31
London, UK

RUN Battersea Park Half Marathon Spring

Lace up your trainers and RUN Battersea Park Half which will be a scenic and energising experience on a pancake-flat course for all abilities with beautiful views of green spaces and the River Thames.

  • Newcomers
  • Chip timing
  • Enter online
  • Flat
  • PB
  • Event village
  • Park
  • Age 18 & over
  • 13.1 miles road running
  • Sun 1 Mar 2026
London, UK

London Half and 10K Presented by TREK | Half Marathon

  • 21.1 km road running + 117 m ascent

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