Baby steps and giant strides

Changing diapers and feeding time barely slowing down Ironman's power couple in quest for glory

Two of the world's most accomplished endurance athletes, three-time Ironman world champion Mirinda Carfrae and her husband, Tim O'Donnell, are relaxing on a plush white couch in an otherwise quiet house on a tree-lined street near the University of Kansas campus.

Against one wall are their time-trial bikes, awaiting their next session. A plastic bin full of running shoes sits nearby. Water bottles and energy drinks are scattered about the kitchen.