Sun 21 Sep 2025 Horsham, West Sussex, UK

Tough Mudder London South | 15K - 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!

  • Sun 21 Sep 2025
Holmbush Estate, Horsham

15K - Sunday

08:45

Age 14 & over

£80-£85

  • 15 km multi terrain running
  • Enter online
  • Event village
  • Families
  • Fundraising optional
  • Hilly
  • Music
  • Newcomers
  • Park
  • Traffic free
Charity places

Event details

  • All fitness levels
  • Event village
  • Families
  • Newcomers
  • Spectators
  • Teams
  • Traders at event

Location

  • Bag storage
  • Bar
  • Cafe
  • Camping
  • Changing facilities
  • Free parking
  • Music
  • Park
  • Showers
  • Toilets

Route

  • First aid
  • Hilly
  • Marshals
  • Traffic free
  • Wave start
  • Way markers

What's included

  • Drinks
  • Medal
  • T-shirt

Charity places

These charities have places in the event. To secure your place, select a charity and provide your details.

All charity places
Social welfare

Turn2us

Information and support for people in the UK to build financial sustainability and thrive.

  • T-shirt
  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up
£50

Fundraise
£250

Mental health

Mind

The mental health charity.

  • Running vest
  • Fundraising support
  • Fundraising materials
  • Training plan
  • Training guide
  • Dedicated contact

Sign up
£30

Fundraise
£300

Cancer

Macmillan Cancer Support

No one should have to face cancer alone.

  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up
£30

Fundraise
£300

All charity places

Entries

  • Age 14 & over
  • Entries open
  • Charity entries open
  • Charity places
  • Collect race pack
  • Enter online
  • Event merch available
  • Fundraising optional
  • Pay by instalments