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Half marathons in UK in September 2025

Find half marathons near me in UK in September 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Smash your personal best on a traffic-free, flat and fast course from the White Water Centre and into surrounding beautiful regional parkland with a custom-designed medal for finishers.
  • Sun 23 Mar 2025
  • £35-£37
  • Sun 23 Mar 2025
  • £35-£37
Waltham Cross, Hertfordshire, UK

ATW Run Fest at Lee Valley | Half Marathon

Smash your personal best on a traffic-free, flat and fast course from the White Water Centre and into surrounding beautiful regional parkland with a custom-designed medal for finishers.

  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running + 79 ft ascent
  • Sun 23 Feb 2025
Milton Keynes, Buckinghamshire, UK

The Milton Keynes 5K, 10K and Half Marathon Winter Warmer Run | Half Marathon

  • 13.1 miles trail running
  • Sun 23 Feb 2025
London, UK

London Half, 10K & Juniors | Half Marathon

  • 13.1 miles road running
  • Sun 23 Feb 2025
Eastbourne, East Sussex, UK

Eastbourne Half Marathon

  • 13.1 miles road running
  • Sun 23 Feb 2025
Norwich, Norfolk, UK

The Royal Norwich Half Marathon

  • 13.1 miles road running
  • Sun 23 Feb 2025
Loughborough, Leicestershire, UK

Leicestershire Half Marathon

  • 13.1 miles road running
  • Sun 23 Feb 2025
London, UK

London Half, 10K & Juniors | 10K

  • 10 km road running
  • Sun 23 Feb 2025
Wokingham, Berkshire, UK

David Cliff Wokingham Half Marathon | Half Marathon

  • 13.1 miles road running
  • Sun 2 Mar 2025
Anglesey, Isle of Anglesey, UK

Jones o Gymru Anglesey Half Marathon

  • 13.1 miles road running
  • Sun 9 Mar 2025
Kingston upon Thames, Surrey, UK

Kingston Breakfest Run | 16 Mile

  • 16 miles road running
  • Sun 9 Mar 2025
Kingston upon Thames, Surrey, UK

Kingston Breakfest Run | 20 Mile

  • 20 miles road running
  • Sun 9 Mar 2025
Cambridge, Cambridgeshire, UK

TTP Cambridge Half Marathon

  • 13.1 miles road running
  • Sun 23 Mar 2025
East Molesey, UK

Hampton Court Palace Half Marathon

  • 13.1 miles road running
  • Sun 23 Mar 2025
Hexham, Northumberland, UK

TRAILDOG Kielder Waterside | Half Marathon

  • 13.1 miles road running
  • Sun 13 Apr 2025
Prestatyn, Clwyd, UK

Summit 2 Sea - The Offa's Dyke Half Marathon

  • 13.8 miles trail running
  • Sun 27 Apr 2025
Coventry, West Midlands, UK

Coventry Half Marathon

  • 13.1 miles road running
  • Sun 27 Apr 2025
Leeds, West Yorkshire, UK

not done LONDON MARATHON | Half Marathon

  • 13.1 miles trail running
  • Sun 4 May 2025
Skipton, North Yorkshire, UK

May the Fourth be with you | Half Marathon

  • 13.1 miles trail running
  • Sun 11 May 2025
Thirsk, North Yorkshire, UK

Hardmoors 26.2 White Horse Trail Marathon | Half Marathon

  • 16.5 miles trail running
  • Sun 25 May 2025
Hornsea, East Yorkshire, UK

WooHoo it's Hornsea | Half Marathon

  • 13.1 miles trail running
  • Sat 14 Jun 2025
Ruthin, Clwyd, UK

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

  • 13 miles trail running + 2738 ft ascent
  • Sat 14 Jun 2025
Portree, Highland, UK

Skye Half Marathon | Half Marathon

  • 13.1 miles road running
  • Sun 15 Jun 2025
Middlesbrough, North Yorkshire, UK

Hardmoors 26.2 Wainstones Trail Marathon | Half Marathon

  • 16.5 miles trail running
  • Sun 15 Jun 2025
Huddersfield, West Yorkshire, UK

Av seen thee a'fore at Slawit | Half Marathon

  • 13.1 miles trail running
  • Sun 28 Sep 2025
Deal, Kent, UK

4 Castles Challenge

  • 13.1 miles multi terrain running

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