Sorenstam pulled away with four birdies on the last five holes, beginning with an 18-foot birdie putt on the 14th. She finished the day at a 15-under 201.
"The previous two days, I haven't made anything, and I missed little putts," said the Swede. "It really leaves a sour taste in your mouth, especially when I feel like I'm playing so well."
For the 16-year-old Wie, things began to feel similar to the final round at this year's US Women's Open, where she missed several short putts on her way to an 82. After a three-putt bogey on the second here, she took three putts from five feet on the next hole.
Wie did not drop a shot the rest of the way, finishing with a birdie for a one-under 71, five shots behind Sorenstam.
"I didn't play as well as I wanted, but I played really strong over the last couple of holes and hopefully I can carry that on tomorrow," Wie said. "It felt good that I brought it back."
With the No 1 player in women's golf in total control, it appears the best Wie can do is play for the size of her first paycheck with Catriona Matthew, of Scotland, who is a shot further back.
Grace Park had a two-shot lead to start the third round but disappeared with an adventure into the desert on the eighth that gave her a quadruple-bogey seven.
"When I saw it was Park, I thought it was Grace all day," Sorenstam said of the name on the leaderboard behind her. It was Gloria Park who wound up in the final group. But she might only be along for the ride.Reuse content