Athletes begin their day with a 3.8 km swim course in the quiet waters of the Langener Waldsee. The two-loop course has a short run between the laps. The water temperature is usually between 22°C and 24°C. The two-loop bike course guides athletes through the middle of Frankfurt, and into surrounding small villages. The course, which is closed to traffic, is hilly and challenging, mixed with some flat sections. Thousands of spectators come out to cheer for the athletes over the 180 km bike course. The 42 km flat run course consists of four fast laps, which allow athlete to reach their best marathon times. The run course is lined with thousands of spectators who gather along the promenande next to the river.
RONMAN Frankfurt offers 75 qualifying slots for the IRONMAN World Championship in Kailua-Kona, HI.