IRONMAN Chattanooga will begin with a point to point, 2.4-mile swim in the Tennessee River with ample spectator vantage points alongside the city's famous Riverwalk. Athletes can look forward to a fast, down-current swim. The bike course (116 miles) will head south of town and do two loops in North Georgia with scenic farmland and mountain views. The two-and-a-half loop, 26.2-mile run course will showcase beautiful downtown Chattanooga, Riverview and the North Shore. Overall, expect a fast, rolling course.