IRONMAN 70.3 Duisburg in Germany—an exhilarating triathlon that pushes athletes to their limits against the stunning backdrop of Duisburg's landscapes and iconic landmarks. Swim: The adventure kicks off on the regatta course of the 'Sportpark Duisburg' with a 1.9 km swim. Imagine the rush of diving into the cool waters, surrounded by the cheers of spectators lining the shore. With an average water temperature of 70°F (21°C), it's a refreshing start to a challenging journey. Bike: As athletes ...