Runs in South East in September 2026
Find runs in South East in September 2026 - filter by date, location or category, 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.
- Fri 4 Sep
- £7-£16
Rye Summer 5K Series | Race Five
Enjoy every spellbinding step through the stunning landscape of Rye Harbour Nature Reserve in this exceptional summer series. Enter one or enter more and watch your times improve.
- Fun run
- 5K run
- Sat 5 - Sun 6 Sep
- £89-£199
South Coast Ultra Challenge
The South Downs National Park is a superb backdrop for a real challenge featuring Beachy Head, the Seven Sisters and the South Downs Way with a choice of distances from 25km right up to 100km!
- 100K ultra run 2
- Ultra run 2
- Trail run
- Fri 11 - Sun 13 Sep
- £39-£199
Thames Path Ultra Challenge
England’s greatest river provides a fantastic backdrop for an unforgettable 'festival' challenge weekend, with distances from 10km right up to 100km there’s a Thames Challenge for everyone!
- 100K ultra run 2
- 50K ultra run 2
- Trail run 4
- Ultra run
- 10K run
- + 4 more races
- Sat 12 Sep
- £33-£62
Bewl Water Autumn
Previously rated one of the top 10 UK marathons! Scenic mixed-terrain routes following Bewl Water around the reservoir route on undulating rural wooded trails and quiet country lanes.
- 10K run
- Half marathon
- Marathon
- 50K ultra run
- Sun 13 Sep
- £29-£33
Rye Ancient Trails 30K & 15K
A true steeplechase race across the breathtaking scenery of the ancient trails surrounding the medieval town of Rye in East Sussex, linking Norman churches as you go.
- Multi-terrain run 2
- Sat 26 Sep
- £49-£139
Chiltern 50 Ultra Challenge
A beautiful, end-of-season, looped challenge in some of the Chilterns' finest countryside, with historic trails, rolling hills, nature reserves and fantastic views with routes from 10km up to 50km.
- 50K ultra run
- Trail run
- 10K run
- Sun 27 Sep
- £0.50-£48
Windsor Half Marathon & Sprite Sprint
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!
- Fun run
- Half marathon
- Sun 27 Sep
- £5-£27
Folkestone Rotary Half Marathon
This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.
- Fun run
- Half marathon
- Sun 13 Sep
- £10-£68
The Garmin New Forest Marathon
- Fun run 2
- Short walk
- 5K run
- 10K run
- Half marathon
- + 1 more race
- Sun 13 Sep
- FREE-£69
Bacchus Wine Half Marathon & 10K
- 10K run
- Half marathon
- Fun run