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Half marathons in September 2025

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

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  • Sun 7 Sep
Caernarfon, Gwynedd, UK

Caernarfon Half Marathon | Caernarfon Half Marathon

  • 13.1 miles road running + 620 ft ascent
  • Sun 7 Sep
Preston, Lancashire, UK

Garstang Half Marathon

  • 13.1 miles road running
  • Sun 7 Sep
Wellingborough, Northamptonshire, UK

Stanwick Lakes Run Series - Autumn Run | Half Marathon

  • 13.1 miles road running
  • Sun 7 Sep
Bridgwater, Somerset, UK

Bridgwater Half Marathon | Half Marathon

  • 13.1 miles road running
  • Sun 7 Sep
Buxtehude, Germany

Buxtehude Old Town Run - Half Marathon

  • 21.1 km road running
  • Sat 13 Sep
Ambleside, Cumbria, UK

Langdale Marathon and Half | Half Marathon

  • 21.1 km road running + 592 m ascent
  • Sat 13 Sep
Rugeley, Staffordshire, UK

TrailFest | Cannock Chase Forest | Half Marathon

  • 13.1 miles trail running + 463 m ascent
  • Sat 13 Sep
Kilkenny, Ireland

Kilkenny Medieval Marathon | Half Marathon

  • 21.1 km road running
  • Sat 13 Sep
Pirmasens, Germany

Palatinate Forest Marathon | Half Marathon

  • 21.1 km road running
  • Sat 13 Sep
Goslar, Germany

10 Ponds Marathon | Half Marathon

  • 21.1 km trail running
  • Sun 14 Sep
Dumfries, Dumfries and Galloway, UK

Dumfries Half Marathon

  • 13.1 miles road running
  • Sun 14 Sep
Guernsey, Guernsey

Butterfield Half Marathon

  • 13.1 miles road running
  • Sun 14 Sep
Porto, Portugal

Hyundai Porto Half Marathon

  • 21 km road running
  • Sun 14 Sep
Tallinn, Estonia

Swedbank Tallinn Marathon | Half Marathon

  • 21.1 km road running
  • Sun 14 Sep
Masarykovo nám., Czech Republic

BREMBO Ostrava City Marathon | Half Marathon

  • 21.1 km road running
  • Sun 14 Sep
Niedernhall, Germany

Ebmpapst Marathon | Half Marathon

  • 21.2 km road running
  • Sun 14 Sep
Kassel, Germany

Kassel Marathon | Half Marathon

  • 21.1 km road running
  • Sun 14 Sep
Kinlochleven, Highland, UK

Glencoe Marathon Gathering | Half Marathon

  • 13.1 miles trail running
  • Sun 14 Sep
Stratford-upon-Avon, Warwickshire, UK

Stratford's Big 10K & Half Marathon | Half Marathon

  • 13.1 miles road running
  • Sun 14 Sep
Royston, Hertfordshire, UK

The Chas Avis Harvest Trail Half and Quarter Marathon | Half Marathon

  • 13.1 miles trail running
  • Sun 14 Sep
Chelmsford, Essex, UK

Pleshey & Essex Half Marathon

  • 13.1 miles road running
  • Sun 14 Sep
Chippenham, Wiltshire, UK

Chippenham Half Marathon

  • 13.1 miles road running
  • Sun 14 Sep
Truro, Cornwall, UK

Truro Half Marathon

  • 13.1 miles road running
  • Sun 14 Sep
Worcester, Worcestershire, UK

Worcester City Runs | Half marathon

  • 13.1 miles road running + 178 ft ascent
  • Sun 14 Sep
Craigavon, County Armagh, UK

Rock the Lough 25 | Half Marathon

  • 13.1 miles road running

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