NASHVILLE, TN - APRIL 30: Runner and 3 time half-marathon winner; Roosevelt Cook celebrates as he crosses the finish-line in the St. Jude Rock 'n' Roll Nashville Marathon/Half Marathon and 5k where more than 34,000 participants weathered the rain during the 17th running on April 30, 2016 in Nashville, Tennessee. (Photo by Jason Davis/Getty Images for St. Jude)