Sharapova beat Wozniacki 6-2, 6-2 in Sunday's final and, with defending champion Victoria Azarenka withdrawing before her semifinal match, goes to No. 2 in the rankings behind Serena Williams. Azarenka falls to third.
Sharapova, with her 28th WTA title, is third on the active players' list in that category. Serena Williams leads with 47 wins and Venus Williams is second at 44. Wozniacki, with 20 career wins, is fourth.
Serena Williams, who doesn't include Indian Wells on her schedule, has 10,365 points to lead the women's rankings while Sharapova is second at 10,015 and Azarenka drops to third with 9,575 points.
Errani has 5,160 points, just 10 more than Kvitova. Wozniacki moves to 4,130 points while Stosur, in 10th, has 4,005.