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5K runs in South East in September 2025

Find 5k runs 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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Select an event for photos, video, route, location, reviews, entry fees and how to enter.

Enjoy every spellbinding step of a 5K through the stunning landscape of Rye Harbour Nature Reserve in this exceptional summer series. Enter one or enter more and watch your times improve.
  • Fri 5 Sep
  • £15
  • Fri 5 Sep
  • £15
Rye, East Sussex, UK

Rye Summer 5K Series | Race Four | 5K

Enjoy every spellbinding step of a 5K through the stunning landscape of Rye Harbour Nature Reserve in this exceptional summer series. Enter one or enter more and watch your times improve.

  • Chip timing
  • Enter online
  • Flat
  • Age 11 & over
  • 5 km road running + 42 ft ascent
Entries close soon
Secure your charity place in the Run Thorpe Park 5K today. Run for charity around rides and rollercoasters while supporting top UK charities. Find a cause and join their team today!
  • Sun 7 Sep
  • Entries close soon
  • Sun 7 Sep
  • Entries close soon
Chertsey, Surrey, UK

Run Thorpe Park 5K & 10K | 5K

Secure your charity place in the Run Thorpe Park 5K today. Run for charity around rides and rollercoasters while supporting top UK charities. Find a cause and join their team today!

  • Chip timing
  • Enter online
  • Age 11 & over
  • 5 km road running + 4 m ascent
Entries close soon
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!
  • Sat 20 Sep
  • Entries close soon
  • Sat 20 Sep
  • Entries close soon
Horsham, West Sussex, UK

Tough Mudder London South | 5K - Saturday

Secure your charity place in Tough Mudder London South 5K Saturday today. Run for charity in a muddy obstacle course while supporting top UK charities. Find a cause and join their team today!

  • Enter online
  • Hilly
  • Traffic free
  • Fundraising optional
  • Age 14 & over
  • 5 km multi terrain running
Entries close soon
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!
  • Sun 21 Sep
  • Entries close soon
  • Sun 21 Sep
  • Entries close soon
Horsham, West Sussex, UK

Tough Mudder London South | 5K - Sunday

Secure your charity place in Tough Mudder London South 5K Sunday today. Run for charity in a muddy obstacle course while supporting top UK charities. Find a cause and join their team today!

  • Enter online
  • Hilly
  • Traffic free
  • Fundraising optional
  • Age 14 & over
  • 5 km multi terrain running
  • Wed 3 Sep
Woking, Surrey, UK

The Woking 3 Miles Monthly Handicap

  • 2.85 miles road running
  • Sun 7 Sep
High Wycombe, Buckinghamshire, UK

Bradenham Blast | 5K

  • 5 km trail running + 108 m ascent
  • Sun 14 Sep
Eastbourne, East Sussex, UK

Eastbourne 5K | 5K

  • 5 km road running + 17 m ascent
  • Sun 14 Sep
Canterbury, Kent, UK

The Wingham Run | 5K

  • 5 km road running
  • Sun 14 Sep
Brockenhurst, Hampshire, UK

The Garmin New Forest Marathon | 5K

  • 5 km multi terrain running + 50 ft ascent
  • Sat 20 Sep
Waterlooville, Hampshire, UK

Hambledon Hilly | 5K

  • 5 km trail running
  • Sun 21 Sep
Tunbridge Wells, Kent, UK

Hospice Run | 5K

  • 5 km road running + 229 ft ascent
  • Sun 21 Sep
Reigate, Surrey, UK

Run Reigate | 5K

  • 5 km road running + 82 m ascent
  • Sun 28 Sep
Dartford, Kent, UK

The River Run | 5K

  • 5 km trail running
  • Sun 28 Sep
Andover, Hampshire, UK

The Amport Trail Run | 5K CaniCross

  • 5 km multi terrain running
  • Sun 28 Sep
Horsham, West Sussex, UK

Run Barns Green | 5K

  • 5 km road running
  • Sun 28 Sep
Andover, Hampshire, UK

The Amport Trail Run | 5K

  • 5 km multi terrain running

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