Canadian teen Brooke Henderson won the Four Winds Invitational on Sunday to become the third-youngest winner in Symetra Tour history.

The 17-year-old native of Smiths Falls, Ont., closed with a 3-under 69 for a two-stroke victory, finishing at 10-under 206 at Blackthorn.

"It's amazing to win and I'm so thankful that I got the sponsor's exemption this week," Henderson said. "I'm very grateful for the win here and I think it will be a big confidence booster moving forward."

Henderson tied for fifth last week in the Women's PGA Championship, the second of the LPGA Tour's five majors.

"I've been busy, but I wouldn't change it for the world, it has been a lot of fun," Henderson said. "People often ask me how busy it is and why I don't take a week off, but I love being out here and I think every week I am learning a bit more about myself and my game and I think it is helping me be better."

Second-round leader Dottie Ardina of the Philippines was second. She birdied the final hole for a 74.

Henderson made three straight birdies on Nos. 11-13, parred the next four holes and bogeyed the last. She opened with rounds of 72 and 65.

"I was 1 under on the front nine and I knew I was near the lead, but I was kicking myself because I knew I needed to get it going," Henderson. "Holes 11 and 12 were huge turning points, where Dottie and I kind of switched positions, and then I was able to keep it from there."

American Selanee Henderson, Jessica Wallace of Langley, B.C., and Italy's Giulia Molinaro tied for third at 7-under. Selanee Henderson had a 65, and Wallace and Molinaro shot 70.