WILLIAMSBURG -- Annika Sorenstam added a birdie to her round today to go 13-under-par and remain in first place in the Michelob Ultra Open here at Kingsmill. Sorenstam has finished the front nine. Her birdie was matched by Lorena Ochoa, who is playing in the same threesome as Sorenstam. Ochoa is 10-under. Jee Young Lee added another birdie to her round and is nine-under for the day, as is Jeong Jang. Christina Kim, Karen Stupples and Jamin Kang are hanging in at eight under.