Ironman Wisconsin 70.3 is happening June 10, 2018 in the beautiful Madison, Wisconsin! Athletes all over come to race this event, it has amazing crowd energy and legendary spectator support. Athletes start off with a 1.2 mile swim in the deep waters of Lake Mona. Then athletes transition into biking 56 miles in rural Dane Country. This course offers many challenging climbs and turns throughout. Finally, athletes finish strong with a 13.1 mile run along the shores of Lake Monona.