Half marathons in South East in September 2025
Find half marathons near me in South East 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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- Sat 13 Sep
- £43-£45
- Sat 13 Sep
- £43-£45
Bewl Water Autumn | Half Marathon
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon course was previously rated one of the top UK marathons.
- Chip timing
- Enter online
- Undulating
- Age 17-80
- 13.1 miles trail running + 710 ft ascent
- Sun 21 Sep
- £23-£35
- Sun 21 Sep
- £23-£35
Fraggle Run | Half Marathon
Who doesn't know and love The Fraggles! Come and join Saturn Running for the Fraggle Run and earn a medal based on the adorable little creatures!!
- Enter online
- Age 17 & over
- 13.1 miles road running + 0 ft ascent
- Sat 27 Sep
- £23-£35
- Sat 27 Sep
- £23-£35
Romp Run | Half Marathon
Anyone know what a group of otters is called?? A romp!!! So Saturn Running is holding an event inspired by these adorable little creatures and the medal is super cute too!
- Enter online
- Age 17 & over
- 13.1 miles road running + 0 ft ascent

- Sun 28 Sep
- £45
- Sun 28 Sep
- £45
Hever Castle | Half Marathon
Get active in the award-winning grounds and surrounding Kent countryside in a half marathon! Recruit your friends and celebrate completing your challenge in the festival village.
- Chip timing
- Enter online
- Age 17 & over
- 21.1 km trail running

- Sun 28 Sep
- £42-£44
- Sun 28 Sep
- £42-£44
Windsor Half Marathon
An inspiring half marathon in Windsor Great Park, starting and finishing on the Long Walk with Windsor Castle as the backdrop - probably the most iconic of all road race finishes in the UK!
- Chip timing
- Enter online
- Undulating
- Traffic free
- Age 17 & over
- 13.1 miles road running

- Sun 28 Sep
- £24-£26
- Sun 28 Sep
- £24-£26
Folkestone Rotary Half Marathon
This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.
- Chip timing
- Enter online
- Flat
- PB
- Age 17 & over
- 13.1 miles road running + 469 ft ascent
- Sat 6 Sep
The Shere 42K, 21K & 10K Multi Terrain Event | 21K
- 21 km multi terrain running + 543 m ascent
- Sun 7 Sep
The Sufferings | Half Marathon
- 13.1 miles trail running + 2126 ft ascent
- Sun 7 Sep
Julie Rose Marathon & Half Marathon | Half Marathon
- 13.1 miles track and field
- Sun 14 Sep
The Garmin New Forest Marathon | Half Marathon
- 13.1 miles multi terrain running + 150 ft ascent
- Sun 21 Sep
Hospice Run | Half Marathon
- 13.1 miles road running + 1174 ft ascent
- Sun 21 Sep
Winchester Half Marathon | Half Marathon
- 13.1 miles road running + 841 ft ascent
- Sun 28 Sep
The One on the Trail | Marlow | Half Marathon
- 13.1 miles multi terrain running