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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 full 50K route of the Chiltern 50 Ultra Challenge starts from basecamp in Henley on a loop via Greys Court, the Ridgeway, Shakespeare's Way, The Chilterns and Hambleden Village to a party finish!
  • Sat 27 Sep
  • £139
  • 12 charities
  • Sat 27 Sep
  • £139
  • 12 charities
Henley-on-Thames, Buckinghamshire, UK

Chiltern 50 Ultra Challenge | Full 50km

The full 50K route of the Chiltern 50 Ultra Challenge starts from basecamp in Henley on a loop via Greys Court, the Ridgeway, Shakespeare's Way, The Chilterns and Hambleden Village to a party finish!

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 50 km trail running + 920 m ascent
An exciting 25km loop as part of the Chiltern 50 Ultra Challenge from Henley Showground past the River Thames, Greys Court and the pretty Hambleden Village to a celebratory finish!
  • Sat 27 Sep
  • £89
  • 12 charities
  • Sat 27 Sep
  • £89
  • 12 charities
Henley-on-Thames, Buckinghamshire, UK

Chiltern 50 Ultra Challenge | Henley 25km Loop

An exciting 25km loop as part of the Chiltern 50 Ultra Challenge from Henley Showground past the River Thames, Greys Court and the pretty Hambleden Village to a celebratory finish!

  • Enter online
  • GPS tracking
  • Undulating
  • Age 14 & over
  • 25 km trail running + 500 m ascent
10Hrs: 10 Laps: You-vs-You. Complete 10 laps of the ~3-mile, 4-mile or 5-mile loops in the given time through the scenic Denbies Wine Estate.
  • Sat 27 Sep
  • £75
  • Sat 27 Sep
  • £75
Dorking, Surrey, UK

Fortitude Ultra | Denbies

10Hrs: 10 Laps: You-vs-You. Complete 10 laps of the ~3-mile, 4-mile or 5-mile loops in the given time through the scenic Denbies Wine Estate.

  • Newcomers
  • Enter online
  • Hilly
  • Traffic free
  • Event village
  • Rural
  • Free venue entry
  • Sustainability policy
  • Age 20 & over
  • 10 hrs trail running
A beautiful 10km loop from the basecamp at Henley Showground exploring public footpaths and wonderful woodlands within the Culden Faw estate to be rewarded with a medal and glass of fizz!
  • Sat 27 Sep
  • £39
  • 13 charities
  • Sat 27 Sep
  • £39
  • 13 charities
Henley-on-Thames, Buckinghamshire, UK

The Chiltern 10K

A beautiful 10km loop from the basecamp at Henley Showground exploring public footpaths and wonderful woodlands within the Culden Faw estate to be rewarded with a medal and glass of fizz!

  • Enter online
  • Undulating
  • Age 15 & over
  • 10 km trail running + 235 m ascent
Get active in the award-winning grounds and surrounding Kent countryside in a full marathon! Recruit your friends and celebrate completing your challenge in the festival village.
  • Sun 28 Sep
  • £65-£80
  • Sun 28 Sep
  • £65-£80
Edenbridge, Kent, UK

Hever Castle | Marathon

Get active in the award-winning grounds and surrounding Kent countryside in a full marathon! Recruit your friends and celebrate completing your challenge in the festival village.

  • Chip timing
  • Enter online
  • Relay
  • Age 18 & over
  • 42.2 km trail running
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.
  • Sun 28 Sep
  • £45
  • Sun 28 Sep
  • £45
Edenbridge, Kent, UK

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
Get active in the award-winning grounds and surrounding Kent countryside in a 10K run! Recruit your friends to join in then celebrate completing your challenge in the festival village.
  • Sun 28 Sep
  • £35
  • Sun 28 Sep
  • £35
Edenbridge, Kent, UK

Hever Castle | 10K

Get active in the award-winning grounds and surrounding Kent countryside in a 10K run! Recruit your friends to join in then celebrate completing your challenge in the festival village.

  • Chip timing
  • Enter online
  • Age 15 & over
  • 10 km trail running
This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.
  • Sun 28 Sep
  • £4
  • Sun 28 Sep
  • £4
Folkestone, Kent, UK

Folkestone Rotary Half Marathon | Junior Race

This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.

  • Enter online
  • All ages
  • 1 km road running
This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.
  • Sun 28 Sep
  • £24-£26
  • Sun 28 Sep
  • £24-£26
Folkestone, Kent, UK

Folkestone Rotary Half Marathon | 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
  • Wed 3 Sep
Woking, Surrey, UK

The Woking 3 Miles Monthly Handicap

  • 2.85 miles road running
  • Sat 6 Sep
Guildford, Surrey, UK

The Shere 42K, 21K & 10K Multi Terrain Event | 42K

  • 42 km multi terrain running + 1300 m ascent
  • Sat 6 Sep
Guildford, Surrey, UK

The Shere 42K, 21K & 10K Multi Terrain Event | 21K

  • 21 km multi terrain running + 543 m ascent
  • Sat 6 Sep
Guildford, Surrey, UK

The Shere 42K, 21K & 10K Multi Terrain Event | 10K

  • 10 km multi terrain running + 217 m ascent
  • Sun 7 Sep
Dorking, Surrey, UK

Bacchus Wine Half Marathon

  • 13.1 miles trail running + 1427 ft ascent
  • Sun 7 Sep
High Wycombe, Buckinghamshire, UK

Bradenham Blast | Half Marathon

  • 21.1 km trail running
  • Sun 7 Sep
High Wycombe, Buckinghamshire, UK

Bradenham Blast | 10K

  • 10 km trail running + 239 m ascent
  • Sun 7 Sep
High Wycombe, Buckinghamshire, UK

Bradenham Blast | 5K

  • 5 km trail running + 108 m ascent
  • Sun 7 Sep
Dorking, Surrey, UK

Bacchus Wine 10K

  • 10 km trail running + 732 ft ascent
  • Sun 7 Sep
Dorking, Surrey, UK

Bacchus Fun Run

  • 2 km trail running
  • Sat 20 Sep
Horsham, West Sussex, UK

Tough Mudder London South | Kids by Spartan 3K - Saturday

  • 3 km multi terrain running
  • Sat 20 Sep
Horsham, West Sussex, UK

Tough Mudder London South | Kids by Spartan 1.5K - Saturday

  • 1.5 km multi terrain running
  • Sat 20 Sep
Alresford, Hampshire, UK

The Hard Yard 10 Mile Trail Race

  • 10 miles trail running + 877 ft ascent
  • Sat 20 Sep
Winchester, Hampshire, UK

Guided Half Marathon - Winchester

  • 13.1 miles trail running
  • Sat 20 Sep
Alresford, Hampshire, UK

The Yard 10K Trail Race

  • 10 km trail running + 498 ft ascent
  • Sat 20 Sep
Horsham, West Sussex, UK

Tough Mudder London South | Kids by Spartan 1K - Saturday

  • 1 km multi terrain running

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