Summer rolls on as Ledecky scales new heights

Silver medallist Katie Ledecky of United States celebrate after her 4x200m free relay on Thursday in Nanterre, France. (Ueslei Marcelino/Reuters)

PARIS — Summer McIntosh showed the Paris Olympic pool the thrill of the new with a second gold medal for Canada on Thursday, but it was golden oldie Katie Ledecky standing alone at the end of day six as the most decorated female swimmer of all time.