15K Sunday
Sun 24 Sep 2023 Horsham, West Sussex, UK

Tough Mudder London South | 15K Sunday

The ultimate obstacle course! With no competition and no timing, it’s just you, your teammates and muddy strangers working together to conquer the course and earn the world-famous orange headband.

Enter now Get charity place
  • Sun 24 Sep 2023
Holmbush Estate, Horsham

15K Sunday



Age 14 & over

  • 15 km multi terrain running


Tough Mudder is more than just an obstacle course. Built on a foundation of teamwork and overcoming obstacles, it's the chance to unplug from the daily grind, experience the unexpected, and accomplish something bigger than yourself.


  • world's best obstacles

    Tried, tested and refined over many years, take on the renowned Tough Mudder obstacles.

  • Spectacular setting

    Tough Mudder always has a special backdrop to complete the day's muddy fun.

  • Festival village

    Enjoy the uplifting vibes with entertainment and local food and drink.

  • Various fitness levels

    From the aspiring to the elite, athletes of all abilities will achieve unparalleled feats.

  • Earn your headband

    The famous orange headband plus other goodies are yours at the finish line.

  • Free training guides

    Take advantage of the bumper fitness and nutrition advice from the minute you sign up.

  • Discounted entry here

    Save tens of pounds on entry with a charity place.

This event is part of Tough Mudder London South.

Event details

  • All fitness levels
  • Event village
  • Families
  • Fancy dress
  • Newcomers
  • Spectators
  • Teams

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

Event HQ

Holmbush Estate
Crawley Road
West Sussex
RH12 4SE


  • 1 lap
  • First aid
  • Marshals
  • Traffic free
  • Undulating
  • Wave start


  • Public transport links

What's included

  • Race photo
  • T-shirt

Mud with meaning

Make those muddy miles count.

Make your event day even more special by tackling the course to raise money for charity. Running for charity can raise both much-needed funds and awareness as you take on obstacles with hundreds of other Mudders.

There’s nothing like the feeling of crossing the finish line and earning your headband. Now imagine you’ve crushed that goal not only for yourself but for the greater good. That's pretty epic.

Fundraising options

You can either:

  • Get your own place and fundraise as much as you can for charity
  • Or get a charity place (which saves you tens of pounds) and fundraise a target amount

Charity places

These charities have places in the event. To secure your place, select a charity, complete the form and follow the instructions.



Every childhood is worth fighting for.

  • Running vest
  • Fundraising support
  • Fundraising materials
  • Bespoke training plan
  • Pro training advice
  • Training guide
  • Online training zone

Sign up


Mental health

Rethink Mental Illness

Challenging attitudes on mental health to help those severely affected by mental illness.

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

Sign up


Mental health


The mental health charity.

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

Sign up


  • Age 14 & over
  • Entries open
  • Charity entries open
  • Charity places
  • Enter online

Entry fees

Entry fee


Entry fee