Hyo Joo Kim birdied five of the last eight holes and outlasted Stacy Lewis on Sunday in the LPGA Tour's JTBC Founders Cup in Phoenix.
The 19-year-old Kim closed with a 5-under 67, holing a 10-foot birdie putt on the par-4 18th to beat Lewis by three strokes for her second LPGA Tour title.
"In the morning I wasn't concentrating on winning because I was playing with Stacy Lewis, and as a rookie, I just felt that by playing with her, I would learn a lot from her," Kim said through a translator. "I was just trying to make a good impression as a rookie."
"She's just really solid," Lewis said. "Even when I did make some putts, she made the putts to follow and she put a lot of pressure on."
The third-ranked Lewis shot a 68. She pulled within a stroke with a birdie on the par-4 16th but three-putted for bogey on 18.
"The way I played on the front, to think I could still be within a shot coming up those last few holes was pretty amazing," Lewis said. "I'm proud of the way I hung in there. I was in three divots today in the fairway, so that didn't really help things."
Projected to jump from eighth to fourth in the world, Kim finished at 21-under 267 at Wildfire Golf Club. She won the Evian Championship last year in France for first major title and has eight victories on the South Korean tour.
Kim is the fifth South Korean winner in the first six events this year — and the other winner, top-ranked Lydia Ko, was born in South Korea.
Marco Dawson won the Tucson Conquistadores Classic for his first Champions Tour title, breaking a tie with a 20-foot birdie putt on the par-4 16th hole and closing with two pars for a two-stroke victory.
The 51-year-old Dawson shot a 3-under 69 to finish at 13-under 203 in the first-year event at Tucson National, the longtime home of the PGA Tour's defunct Tucson Open. He opened with consecutive 67s to take a one-stroke lead into the final round.
Rain washes out event
Organizers canceled the Madeira Islands Open in Santo Antonio da Serra, Portugal, because of continuing bad weather on Sunday. The European Tour event barely got going.
The field was only able to complete the first round on Saturday.