Canadian teen Brooke Henderson opened a five-stroke lead Saturday in the Cambia Portland Classic in Oregon, shooting a 7-under 65 at Columbia Edgewater. The 17-year-old O’Sullivan, from Chandler, Ariz., rallied to beat 17-year-old Mathilda Cappeliez of France 1 up at Portland Golf Club, and the 17-year-old Brooks, from Sorrento, Fla., topped 18-year-old UCLA freshman Bethany Wu of Diamond Bar (Los Angeles County) 4 and 2. O’Sullivan, 10th in the world amateur ranking, won the Symetra Tour’s Gateway Classic in February at 16 to become the youngest winner in the history of the professional circuit.