It took a little bit longer at the Jamie Farr Owens Corning Classic, but she did it again.
Choi made a 21/2-foot birdie putt on the second playoff hole Sunday to beat fellow South Koreans In-Kyung Kim and Song-Hee Kim and American Christina Kim.
"As I was walking toward the green today, I was thinking about how I had won the last two tournaments and I said to myself, 'Maybe I can do it again,' " she said through an interpreter.
Choi had rounds of 64, 67, 68 and 71 to finish at 14-under 270. It took a gutty 15-foot birdie putt on the 72nd hole to even extend her day after she had blown what had at one time been a five-stroke lead.
"It was tough out there. I was nervous at times," Choi said. "But I tried to focus on my game. Now I'm really happy, and proud that I controlled my emotions today."
Choi, who led after each of the first three rounds, was up by two strokes at the turn but bogeyed 14 and 15 to lose the lead. In-Kyung Kim, who shot 64, had four birdies on the last seven holes to get to 14-under and slide past Choi.
Song-Hee Kim, who had a final-round 66, birdied the 17th to join In-Kyung Kim at that number.
Christina Kim, who was five back of Choi after a double bogey at 10, birdied the next three holes and added another one at 17 to join the growing crowd at 14-under. Playing in the same pairing with Choi, she watched Choi nail her long birdie putt at the 72nd and then had a 12-footer for the win.
EUROPEAN TOUR: In Versailles, France, Miguel Angel Jimenez of Spain won the French Open on the first hole of a playoff against countryman Alejandro Canizares and Francesco Molinari of Italy.
The trio finished the fourth round at Le Golf National in Versailles at 11-under 273. Jimenez shot 4-under-par 67 and his rivals had 68s.
Jimenez had a par on the playoff at No. 18, while Canizares twice hit his ball into the water and Molinari found a fairway bunker with his tee shot and the sand again with his third shot, an approach to the green.
Jimenez earned $613,000 for his 17th European Tour victory and second this season, moving him into the top nine of the qualifying list to automatically make Europe's Ryder Cup team.
Oliver Wilson, the former Augusta State star, closed with 67 to tie for sixth place at 277, missing the playoff by four shots.