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Runs in South East in September 2025

Find 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.

The South Downs National Park is a superb backdrop for a real charity challenge featuring Beachy Head, the Seven Sisters and the South Downs Way with a choice of distances from 25km right up to 100km!
  • Sat 6 - Sun 7 Sep 2025
  • 11 charities
  • Sat 6 - Sun 7 Sep 2025
  • 11 charities
Eastbourne, East Sussex, UK

South Coast Ultra Challenge charity places

The South Downs National Park is a superb backdrop for a real charity challenge featuring Beachy Head, the Seven Sisters and the South Downs Way with a choice of distances from 25km right up to 100km!

  • Newcomers
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Event village
  • Urban
  • Rural
  • Coast
  • Age 14 & over
  • 1 day trail running
Welcome to the Bacchus Wine Half Marathon and 10K, a celebration of award-winning English wine, fine food, fancy dress, music ... and a little bit of running.
  • Sun 7 Sep 2025
  • FREE-£67
  • Sun 7 Sep 2025
  • FREE-£67
Dorking, Surrey, UK

Bacchus Wine Half Marathon & 10K

Welcome to the Bacchus Wine Half Marathon and 10K, a celebration of award-winning English wine, fine food, fancy dress, music ... and a little bit of running.

  • Newcomers
  • Dogs allowed
  • Entertainment
  • Music
  • Fancy dress
  • Event village
  • Free venue entry
  • Public transport links
  • All ages
  • 10K run
  • Half marathon
  • Fun run
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.
  • Sat 13 Sep 2025
  • £33-£60
  • Sat 13 Sep 2025
  • £33-£60
Wadhurst, East Sussex, UK

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.

  • Newcomers
  • Event village
  • Rural
  • Age 15 & over
  • 10K run
  • Half marathon
  • Marathon
  • 50K ultra run
A truly breathtaking multi-terrain race through the High Weald Area of Outstanding Natural Beauty in East Sussex. A race that enchants and delights at every twist and turn.
  • Sun 14 Sep 2025
  • £28-£35
  • Sun 14 Sep 2025
  • £28-£35
Rye, East Sussex, UK

Rye Ancient Trails 30K & 15K

A truly breathtaking multi-terrain race through the High Weald Area of Outstanding Natural Beauty in East Sussex. A race that enchants and delights at every twist and turn.

  • Recycling
  • Newcomers
  • Plastic bottle free
  • Event village
  • Rural
  • Sustainability policy
  • Age 16 & over
  • Multi-terrain run 2
The award-winning Run Reigate is back for its 12th anniversary and promises a much-loved sell-out event with fantastic scenery, an unbeatable atmosphere and a memorable experience!
  • Sun 21 Sep 2025
  • £16.99-£42
  • Sun 21 Sep 2025
  • £16.99-£42
Reigate, Surrey, UK

Run Reigate

The award-winning Run Reigate is back for its 12th anniversary and promises a much-loved sell-out event with fantastic scenery, an unbeatable atmosphere and a memorable experience!

  • Families
  • Wheelchair users
  • Newcomers
  • Plastic bottle free
  • Entertainment
  • Event village
  • Park
  • Free venue entry
  • Sustainability policy
  • Age 4 & over
  • Fun run
  • 5K run
  • 10K run
  • Half marathon
A new and unique concept where you decide how many 10km loops you feel capable of on the day - whether it's 10km, Half Marathon, Full Marathon or an Ultra Marathon! Push yourself further or go easy.
  • Sat 27 Sep 2025
  • £52
  • Sat 27 Sep 2025
  • £52
Gerrards Cross, Buckinghamshire, UK

Running Tribe Races | Sep

A new and unique concept where you decide how many 10km loops you feel capable of on the day - whether it's 10km, Half Marathon, Full Marathon or an Ultra Marathon! Push yourself further or go easy.

  • Newcomers
  • Dogs allowed
  • Park
  • Rural
  • Public transport links
  • Age 16 & over
  • 10K run
  • Half marathon
  • Marathon
  • Ultra run
  • Multi-terrain run
  • Sat 27 Sep 2025
Windsor, Berkshire, UK

Windsor Womens 10K

  • 10 km road running
  • Sat 27 Sep 2025
Lewes, East Sussex, UK

Dark Downs 50K Race

  • 50 km trail running
  • Sun 28 Sep 2025
Windsor, Berkshire, UK

Windsor Half Marathon & Sprite Sprint

  • Fun run
  • Half marathon
  • Sun 28 Sep 2025
Buckingham, Buckinghamshire, UK

Trust 10K Run

  • 10 km trail running
  • Sun 28 Sep 2025
Deal, Kent, UK

4 Castles Challenge

  • 13.1 miles multi terrain running

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