PORTLAND, Ore. (AP) Brooke Henderson won the Cambia Portland Classic by eight strokes Sunday to become the third-youngest champion in LPGA Tour history.
The Canadian closed with a 3-under 69 at Columbia Edgewater to finish at 21-under 267, the lowest total since the event went from 54 holes to 72 in 2013. Henderson is 17 years, 11 months, 6 days.
Lydia Ko set the age record as an amateur in the 2012 Canadian Women's Open at 15 years, 4 months, 2 days. She also won the Canadian event in 2013 at 16, and won four times at 17. Lexi Thompson won the 2011 Navistar LPGA Classic at 16 years, 7 months, 8 days.
Henderson's eight-stroke win is the largest margin of victory on the LPGA Tour since Jiyah Shin won the 2012 Women's British Open by nine shots.
Pornanong Phatlum, Ha Na Jang and Candie Kung tied for second.