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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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Event listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sun 14 Sep
Dronfield, Derbyshire, UK
The INOV8 Big Dipper Half Marathon
- 13.1 miles road running + 1675 ft ascent
- Sun 14 Sep
Ballater, Aberdeenshire, UK
Half BraemarAthon, 10K & 10 Miles | Half Marathon
- 13.1 miles road running + 199 m ascent
- Sun 14 Sep
Brockenhurst, Hampshire, UK
The Garmin New Forest Marathon | Half Marathon
- 13.1 miles multi terrain running + 150 ft ascent
- Sat 20 Sep
Bushmills, County Antrim, UK
Causeway Coast Marathon | Half Marathon CW
- 21 km trail running
- Sun 21 Sep
Tunbridge Wells, Kent, UK
Hospice Run | Half Marathon
- 13.1 miles road running + 1174 ft ascent
- Sun 21 Sep
Winchester, Hampshire, UK
Winchester Half Marathon | Half Marathon
- 13.1 miles road running + 841 ft ascent
- Sun 21 Sep
Jersey, Jersey
El Classico Trail Half Marathon & 10K | Half Marathon
- 13.1 miles trail running + 1498 ft ascent
- Sun 21 Sep
Market Harborough, Leicestershire, UK
Clipston Trail | Half Marathon
- 13.1 miles trail running + 1000 ft ascent
- Sun 21 Sep
Cheltenham, Gloucestershire, UK
Run Cheltenham | Half Marathon
- 13.1 miles road running + 352 ft ascent
- Sun 21 Sep
Redcar, North Yorkshire, UK
Redcar Running Festival | Redcar Half Marathon
- 13.1 miles road running
- Sun 21 Sep
St. Neots, Cambridgeshire, UK
Ouse Valley Way Marathon | Half Marathon
- 13.1 miles multi terrain running