8
5K runs in South East in September 2025
Find 5k runs near me in South East in September 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.
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Click an event for full event details, location, route, sustainability, what's included and how to enter.
- Sun 7 Sep
- 4 charities
- Sun 7 Sep
- 4 charities
Chertsey, Surrey, UK
Run Thorpe Park 5K & 10K | 5K
Join the return of the Run Thorpe Park and fundraise for one of these great causes!
- Chip timing
- Enter online
- Age 11 & over
- 5 km road running
- Sat 20 Sep
- 3 charities
- Sat 20 Sep
- 3 charities
Horsham, West Sussex, UK
Tough Mudder London South | 5K - Saturday
London South is the standout event of the series for good reason. 'Showstopper' obstacles, a diverse course, seriously muddy obstacles and a party atmosphere make it the ultimate mud party!
- Enter online
- Hilly
- Traffic free
- Fundraising optional
- Age 14 & over
- 5 km multi terrain running
- Sun 21 Sep
- 3 charities
- Sun 21 Sep
- 3 charities
Horsham, West Sussex, UK
Tough Mudder London South | 5K - Sunday
London South is the standout event of the series for good reason. 'Showstopper' obstacles, a diverse course, seriously muddy obstacles and a party atmosphere make it the ultimate mud party!
- Enter online
- Hilly
- Traffic free
- Fundraising optional
- Age 14 & over
- 5 km multi terrain running