Sorenstam shot a 7-under-par 65 to force a playoff and then defeated China's Li Ying Ye to win the Suzhou Taihju Ladies Open.
The tournament is on the Ladies European Tour schedule.
Sorenstam said she had to "play the catch-up game" to win. Her final round included birdies on 14, 16 and 18.
2014: The Year in Music [PHOTOS]