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Flat Half marathons in UK

Find flat half marathons in UK in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Run through traffic-free streets in the heart of Bath and experience the electric atmosphere on the course through the UK's only World Heritage City!
  • Sun 14 Mar 2027
  • £55.99-£59.99
Bath, Somerset

GetPRO Bath Half

Run through traffic-free streets in the heart of Bath and experience the electric atmosphere on the course through the UK's only World Heritage City!

  • 13.1 miles road running + 239 ft ascent
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 4 Apr 2027
  • £40-£47
Richmond

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!

  • 13.1 miles road running + 85 m ascent
2027 date TBC. A spirited Central London run with live music, upbeat DJs, street-dancers and inspiring themes on a landmark-packed route with closed roads.
  • Sun 4 Apr 2027
  • £70
London

London Landmarks Half Marathon

2027 date TBC. A spirited Central London run with live music, upbeat DJs, street-dancers and inspiring themes on a landmark-packed route with closed roads.

  • 13.1 miles road running
  • Sat 18 Apr
  • £28-£30
Newark, Nottinghamshire

Thoresby Park Longhorn Trail Event | Half Marathon Trail Run

  • 13.1 miles trail running
  • Sun 19 Apr
  • £46-£48
Bath, Somerset

Bath & Bristol Railway 10K, Half, 25K, Marathon and 50K | Half Marathon

  • 13.1 miles road running
  • Sun 19 Apr
  • £26
Cambridge, Cambridgeshire

Northstowe Half & Toms Trust 5K | Northstowe Half Marathon

  • 13.1 miles multi terrain running
  • Sun 26 Apr
  • £38
Stratford-upon-Avon, Warwickshire

Shakespeare Marathon & Half Marathon | Half Marathon

  • 13.1 miles road running + 102 m ascent
  • Sun 26 Apr
  • £27-£29
Carnoustie, Angus

Barry Buddon FAST Half Marathon

  • 13.1 miles road running
  • Sun 10 May
  • £32
Richmond

Ranelagh Half Marathon

  • 13.1 miles road running + 84 m ascent
  • Sun 10 May
  • £44
Wirral, Merseyside

Love 2 Run | Half Marathon

  • 13.1 miles road running
  • Sun 10 May
  • £40-£42
Crawley, West Sussex

Run Gatwick | Half Marathon

  • 13.1 miles road running
  • Sun 10 May
  • £30-£32
Hereford, Herefordshire

RUN Hereford | Half Marathon

  • 13.1 miles road running + 81 m ascent
  • Sat 23 May
  • £42-£44
Eastbourne, East Sussex

Seven Sisters Half Marathon

  • 13.1 miles trail running + 2057 ft ascent
  • Sun 24 May
  • £32.50
Taunton, Somerset

Run The Taunton Trail 10K & Half Marathon | Half Marathon

  • 21.2 km trail running
  • Sun 7 Jun
  • £40-£42
Leamington Spa, Warwickshire

Leamington Spa Half Marathon | Half Marathon

  • 13.1 miles road running + 561 ft ascent
  • Sun 7 Jun
  • £47
Swansea, West Glamorgan

Swansea Half Marathon

  • 13.1 miles road running
  • Sun 28 Jun
  • £46
Barnstaple, Devon

Tarka Trail 50K, Marathon, Half, 10K & Colourburst Races | Half Marathon

  • 13.1 miles trail running
  • Sat 1 Aug
  • £22-£24
Isle of Islay, Argyll and Bute

Islay Half Marathon

  • 13.1 miles road running
  • Sun 23 Aug
  • £42-£47
Larne, County Antrim

Antrim Coast Half Marathon

  • 13.1 miles road running
  • Sun 6 Sep
  • £35-£37
Dawlish, Devon

City to Sea | Half Marathon

  • 13.1 miles trail running + 2100 ft ascent
  • Sun 13 Sep
  • £23-£36
Chippenham, Wiltshire

Chippenham Half Marathon

  • 13.1 miles road running
  • Sun 13 Sep
  • £51-£53
Brockenhurst, Hampshire

New Forest Marathon | Half Marathon

  • 13.1 miles multi terrain running + 150 ft ascent
  • Sun 13 Sep
  • £38-£40
Llanwddyn, Powys

Lake Vyrnwy Half Marathon

  • 13.1 miles road running
  • Sun 20 Sep
  • £24-£30
Guernsey

Butterfield Half Marathon

  • 13.1 miles road running
  • Sun 20 Sep
  • £27-£36
Cleethorpes, Lincolnshire

ABP Humber Coastal Half Marathon 10K & Family Fun Run | Half Marathon

  • 13.1 miles multi terrain running + 187 ft ascent

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