GRAND RAPIDS (Michigan) • Canadian teenager Brooke Henderson became the youngest LPGA winner of 2017 on Sunday, closing with a bogey-free 66 for a two-stroke victory at the rain-hit Meijer Classic.

The 19-year-old claimed her fourth career Tour win by finishing with a total of 17-under 263 at the Blythefield Country Club course.

"I was kind of surprised when I looked at the leaderboard and I had a two-shot lead on the 18th green," Henderson said.

"Super happy and I'm just glad it's done and I finally have my fourth win."

Because Henderson won on Father's Day, it was fitting that her own father was in the gallery watching her charge to victory.

"This morning, (my dad) said, 'Do it for me,' so this is definitely for him," said Henderson, who had her 26-year-old sister Brittany as her caddie. "He's my coach, my best friend and a great father, so thank you, dad."

Americans Lexi Thompson (69) and Michelle Wie (65) finished two strokes adrift of Henderson at 15-under. Thailand's Moriya Jutanugarn shot a 66 to reach 14-under 266 and was tied for fourth with Sweden's Madelene Sagstrom (65) and Australia's Oh Su Hyun (64).

Organisers had to make changes because of heavy rain. Par was reduced to 69 because of flooding at the fifth hole that turned it from a par-five to a par-three.

Henderson displayed a mix of power and precision in her final round. "I played really steady golf. It's cool to be able to make those putts under pressure," she told the Golf Channel after sinking a three-foot par putt at the final hole.

The Canadian, whose first victory came in 2015 at the Cambia Portland Classic as a non-LPGA member, also became the 15th different winner on the LPGA Tour in 2017.

"Just super-excited right now," she said. "The leaderboard was packed. There were so many great names up there, so to finish on top is really exciting."

She began with six pars before making consecutive birdies and then adding one more to break free of the chasing pack.

AGENCE FRANCE-PRESSE, REUTERS