Live Finish Strong: The Inspiring Mudder Story of the Kelly Family [Video] Author: mattalesevich February 16, 2015 Share on Facebook Share on Twitter Ask Kristina Kelly the thing she’s most proud of in her life, and she’ll name three: her marriage, her children and Tough Mudder. Having lost an 8-year old sister to leukemia, Kristina and her team of a dozen family members, 18 to 48, compete in Tough Mudders to carry on her older sisters memory. To date, Team Kelly has finished six Tough Mudders, and they don’t plan on stopping anytime soon. Find out what keeps them going. Video of IA3v4lWOiDU Miss the first episode? Watch Finish Strong episode one featuring Dan Kosick.