Tough Mudder | 31,353 followers on LinkedIn. The global leader in teamwork-driven experiential fitness, empowering people of all abilities to be #TougherTogether. | Tough Mudder is a lifestyle, events and media company empowering people of all abilities to transform their lives. Over 5 million people worldwide have taken part in our world-class obstacle course challenges which range from fun 5Ks all the way to the pinnacle of obstacle course racing, the 24-hour World’s Toughest Mudder. Every Tough Mudder course features the most innovative obstacles in the industry, they are designed to push participants out of their comfort zone and to challenge their physical strength and mental grit.