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Trail Half marathons in South West in March 2026

Find trail half marathons in South West 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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Off-road trail races around the grounds of Escot Park with some tough little climbs along the way. Ideal for runners of all abilities with canicross category too. Medal for every finisher!
  • Sat 28 Mar
  • £24-£30
Exeter, Devon, UK

Exeter Trail Races

Off-road trail races around the grounds of Escot Park with some tough little climbs along the way. Ideal for runners of all abilities with canicross category too. Medal for every finisher!

  • Trees not tees
  • Recycling
  • Beginner-friendly
  • Dogs allowed at venue
  • Park
  • Free venue entry
  • Sustainability policy
  • Plastic-free event
  • Age 15 & over
  • 10K run
  • CaniCross 2
  • Half marathon
Run your way across the galaxy on a fun, flexible lapped course where you choose the distance, set the pace and earn an out-of-this-world finisher’s medal in the stunning Hurn Forest.
  • Sat 28 Mar
  • £37.50-£39.50
Ringwood, Dorset, UK

Intergalactic

Run your way across the galaxy on a fun, flexible lapped course where you choose the distance, set the pace and earn an out-of-this-world finisher’s medal in the stunning Hurn Forest.

  • Beginner-friendly
  • Enter online
  • Event village
  • Age 18 & over
  • 7 hrs trail running + 56 ft ascent
  • Sun 15 Mar
Marlborough, Wiltshire, UK

Ramsbury Half & 10K | Half Marathon

  • 13.1 miles multi terrain running + 960 ft ascent
  • Sun 22 Mar
Tiverton, Devon, UK

Grand Canal Canter | Half Marathon

  • 13.1 miles trail running + 90 ft ascent
  • Sun 22 Mar
Coleford, Gloucestershire, UK

Forest of Dean Spring Trails Half Marathon

  • 13.1 miles trail running
  • Sun 22 Mar
Sidmouth, Devon, UK

Norm's Helium Loops | Half Marathon

  • 13.1 miles trail running

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