SAMMAMISH, Wash. — Brooke Henderson kept hearing the roar of fans echoing through the trees, leaving her to wonder what was happening elsewhere on the course.
By the end, all those roars were left just for her. And for good reason.
"The way the noise echoed here was really cool," Henderson said. "I'd never experienced that before. … And then a lot of those cheers ended up being for me, which was even cooler."
Henderson won her first major title Sunday, beating top-ranked Lydia Ko with birdie on the first hole of a playoff to win the Women's PGA Championship after overcoming a three-shot deficit on the back nine.
The 18-year-old Canadian, ranked No. 4 in the world, closed with bogey-free 6-under 65 — the best round of the week at Sahalee Country Club — to match Ko at 6-under 278. Ko finished with 67.
In the playoff on the par-4 18th, Henderson hit her second shot — a 7-iron from 155 yards — to 3 feet, while Ko's second from farther back in the fairway left her with 20 feet. Ko missed to the left, and Henderson tapped in.
Henderson became the second-youngest winner of an LPGA major, with Ko the youngest last year in the Evian Championship in France. Henderson also is the second Canadian woman to win a major, after Sandra Post's victory in the 1968 event.
"To think about all of the incredible players that have become before me," Henderson said. "I was reading some of the names on this trophy, and it's very, very cool."
Ko was bidding to become the fifth player in tour history to win three straight majors.
"I'm happy with the way I played. I just got outplayed," Ko said. "For Brooke to shoot 65 on the final day at a major, at a course like this is very impressive."
Ariya Jutanugarn shot 66 to finish a stroke back at 279, after missing a birdie putt on 18.
Seminole's Brittany Lincicome, who was one shot off the lead entering the final round, shot 6-over 77 to finish at 289.
PGA: Daniel Berger won the St. Jude Classic for his first tour title, shooting 3-under 67 to hold off Phil Mickelson, Steve Stricker and Brooks Koepka by three strokes in Memphis. When Mickelson closed within a stroke, Berger, a 23-year-old former Florida State standout, birdied three of his next four holes, finishing at 13-under 267. Mickelson and Stricker shot 67, and Koepka, a teammate of Berger's at FSU, shot 66 in the round that was delayed three hours because of weather. Koepka, Mickelson and Stricker finished three strokes back at 270. Dustin Johnson shot 63, setting the back-nine record with 29, to finish at 9-under 271.
CHAMPIONS: Bernhard Langer won the Senior Players Championship for the third straight year, holing a 12-foot birdie putt on the final hole for a one-stroke victory over Miguel Angel Jimenez and Joe Durant in Flourtown, Pa. Langer won his seventh senior major to tie Hale Irwin for second place, a victory behind Jack Nicklaus. At 58, Langer became the oldest winner in the tournament's history, shooting 3-over 73 to finish 1-over 281, the highest winning score in the history of the event, first played in 1983.