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Flat Half marathons in UK

Find flat half marathons in UK in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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  • Sun 22 Mar 2026
Wilmslow, Cheshire, UK

Waters Wilmslow Running Festival | The Asics Half Marathon

  • 13.1 miles road running + 386 ft ascent
  • Sun 22 Mar 2026
Littleborough, Greater Manchester, UK

Canalathon-Ultra Running Festival | Half marathon

  • 13.1 miles road running + 48 m ascent
  • Sun 5 Apr 2026
Bristol, Gloucestershire, UK

North Bristol Brabazon Half Marathon & 10K | Half Marathon

  • 13.1 miles road running + 44 m ascent
  • Sun 12 Apr 2026
Boston, Lincolnshire, UK

Boston UK Marathon | Half Marathon

  • 13.1 miles road running
  • Sun 19 Apr 2026
Cambridge, Cambridgeshire, UK

Northstowe Half & Toms Trust 5K | Northstowe Half Marathon

  • 13.1 miles multi terrain running
  • Sun 26 Apr 2026
Stratford-upon-Avon, Warwickshire, UK

Shakespeare Marathon & Half Marathon | Half Marathon

  • 13.1 miles road running + 102 m ascent
  • Sun 26 Apr 2026
Carnoustie, Angus, UK

Barry Buddon FAST Half Marathon

  • 13.1 miles road running
  • Sun 10 May 2026
Hereford, Herefordshire, UK

RUN Hereford | Half Marathon

  • 13.1 miles road running + 81 m ascent
  • Sat 23 May 2026
Eastbourne, East Sussex, UK

Seven Sisters Half Marathon

  • 13.1 miles trail running + 2057 ft ascent
  • Sun 13 Sep 2026
Llanwddyn, Powys, UK

Lake Vyrnwy Half Marathon

  • 13.1 miles road running

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