Sung Hyun Park relied on the same, steady style that has helped make her one of the LPGA Tour's top players.
Park Sung Hyun returned to the world No. 1 spot, after a birdie at the first play-off hole lifted her to a US LPGA victory over Lizette Salas in Indianapolis yesterday morning (Singapore time).
It's her third LPGA victory of the 2018 season, . following her two previous tour wins in May and July.
Park closed with a 4-under 68 to match Salas at 23-under 265 at Brickyard Crosssing.
"I'm very honoured to be ranked number one and I hope to maintain that ranking for a long time", said Park, who held the top spot for one week in November 2017.
"I could have freaked out, I could have done a lot of other things, but I stayed patient and I hit the shot I wanted", she said of the chip.
"I have never done that before", she said.
Salas has not won on tour since the 2014 Kingsmill Championship.
Park was then whisked away to the Indianapolis Motor Speedway's finish line, where she celebrated by kissing the bricks and taking the traditional sip of milk - though she declined to take the milk bath as the event's inaugural victor, Lexi Thompson, did previous year.
But the 29-year-old Californian seems to have the ideal touch for this course, which weaves around and inside the historic Indianapolis Motor Speedway. "I didn't practice at all last week, and I was just really eager and excited to be back". "All I could ask for was an opportunity".
Defending champion Lexi Thompson started on the back nine and birdied the par-3 12th and the par-4 16th.
She made up ground despite being assessed a one-stroke penalty after hitting her tee shot on No. 10 into the sixth fairway and lifting the ball without authority.
And the course could change dramatically as it dries out. "I was really excited to be back and to finish off with a birdie, from off the green, was the icing on the cake".
Saturday's forecast calls for partly cloudy conditions with highs in the low 80s and Sunday is supposed to be mostly sunny with highs in the mid-80s. "It's easier mentally to chase than be chased", she said.
"And it's just about the weather now, so hopefully, the weather's good".