( aired on Fri 9/27/19 ) This year’s Ironman Chattanooga triathlon starts early on Sunday - at 7:20 in the morning. First, a swim in the Tennessee River, upstream, for 2.4 miles - then, a 116-mile bike ride through downtown Chattanooga and St. Elmo into North Georgia - and finally, a run that makes two loops through downtown Chattanooga before ending at Ross’ Landing. Tim Morgan is president of the Chattanooga Sports Committee, Keats McGonigal is regional director for Ironman - and Brooke