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Trail Half marathons in UK in Summer

Find trail half marathons in UK in Summer - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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  • Sun 21 Jun 2026
Dunstable, Bedfordshire, UK

Dunstable Downs Half Marathon

  • 21.2 km trail running + 450 m ascent
  • Sun 28 Jun 2026
Northampton, Northamptonshire, UK

TrailFest | Salcey Forest | Half Marathon

  • 13.1 miles trail running + 337 ft ascent
  • Sun 28 Jun 2026
Bideford, Devon, UK

The Lundy Island Race

  • 13.5 miles trail running
  • Sun 5 Jul 2026
Aylesbury, Buckinghamshire, UK

Chiltern Ridge Half Marathon

  • 21.3 km trail running + 526 m ascent
  • Sat 11 Jul 2026
Hereford, Herefordshire, UK

Black Mountains 50 & 32 Mile Ultra, Marathon & Half Marathon | Half Marathon

  • 13 miles trail running + 2738 ft ascent
  • Sun 19 Jul 2026
Stevenage, Hertfordshire, UK

Fairlands Valley Challenge | Half Marathon

  • 13.1 miles trail running
  • Sat 1 Aug 2026
Ivybridge, Devon, UK

Dartmoor Big Day Out | The Great Escape

  • 15.5 miles trail running
  • Sat 8 Aug 2026
Stirling, UK

The Maverick Ochil Hills Trail | Half Marathon - 26K

  • 26 km trail running + 961 m ascent
  • Sun 9 Aug 2026
York, North Yorkshire, UK

Hardmoors 26.2 Farndale Trail Races | Half Marathon

  • 16.5 miles trail running + 2300 ft ascent
  • Sat 22 Aug 2026
Hope Valley, Derbyshire, UK

INFERNO - Edale's Ring of Hell | Half Marathon

  • 15.5 miles trail running + 4000 ft ascent
  • Sun 30 Aug 2026
Guisborough, North Yorkshire, UK

Hardmoors 26.2 Roseberry Trail Races | Half Marathon

  • 14.5 miles trail running + 3200 ft ascent

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