Mirim Lee won her first major title after winning a three-way play-off at the ANA Inspiration.
The South Korean's final-round 67 saw her catch leaders Nelly Korda and Brook Henderson as they all finished on 15 under par.
Korda had led from the first round but missed a putt to win outright on the 18th. Lee then birdied the first hole of the play-off to clinch the title.
Her previous best result in a major was tied for second at the Women's Open in 2016.
England's Mel Reid finished in a tie for seventh place on nine under, her best ever result at the second major of the year.