Meet the incredible or crazy, Mark "Muddy" Ferreira, depending on your opinion. A man who goes above and beyond the call of duty to inspire and create awareness for the Chaeli Campaign, he decided a while back to do the 7-in-7 Challenge, running 6 consecutive ultramarathons before finishing the Comrades marathon, all while pushing Chaeli Mycroft in her buggy for every step of the journey. This 90km ultramarathon draws thousands of people each year and is a true test of the body and mind. A truly inspirational story from a truly inspirational man.