PORTLAND, Ore. — Canadian teenager Brooke Henderson birdied three of her last four holes Friday for and shot 5-under 67 to take the second-round lead in the LPGA Tour's Portland Classic. The 17-year-old Henderson had an 11-under 133 total at Columbia Edgewater for a one-shot lead over Caroline Masson, the German player who had the best round of the week, 64. Playing in cool, breezy and sometimes wet conditions, Henderson took the outright lead with an 8-foot birdie putt on the par-4 ninth, her 18th hole of the day. Henderson made her only bogey of the tournament at 11, and rebounded with birdies at 12, 14 and 3 before the late burst. Henderson, who turns 18 in September, has made $466,818 in nine LPGA Tour tournaments and has the outright 36-hole lead for the third time. LPGA Tour commissioner Mike Whan denied Henderson's age petition last year, preventing her from playing Q-school. She earned a spot in Monday qualifying. Masson had eight birdies in her second straight bogey-free round.