A brand new course at Drumlanrig Castle, breathtaking scenery and lots of thick mud await at the ultimate test of endurance.
Prepare to run up and over gut-busting hills, navigate dark wooded trails, and crawl through plenty of thick mud. You'll need to work together as a team to conquer this course, it is notoriously one most challenging to navigate.
So recruit your friends and get ready to get down and dirty in the ultimate test of physical strength and mental grit. Take on the half mudder, it's shorter than the full at just 5 Miles but definitely as muddy with some of the world's leading obstacles standing between you and glory.
Secure your charity place and fundraise for your chosen cause - choose a charity below to get started.
There are 2 ways to secure your place in Tough Mudder 5K - Scotland Sunday.
Places are available direct from the event organiser - just pay your entry fee and you're in!
If you would like any help or advice, please contact our helpdesk.