Paula Creamer birdied the 18th hole for the third day in a row to complete a four-under par 68 Saturday and stretch her lead to six strokes after 54 holes at the LPGA Tournament of Champions.
The 21-year-old American, seeking her fourth career LPGA triumph and her first since this year's opener in February at Hawaii, stood on 16-under par 200, six strokes ahead of second-place compatriot Pat Hurst after three rounds.
Creamer, who led by five strokes when the day began, has gone 45 holes since making a bogey, that coming on the ninth hole Thursday. She birdied the fifth and 12th on Saturday as well as the 15th and 18th for the third day in a row.
Hurst also fired a 68 to move into second, one stroke ahead of South Korean 24-year-old rookie Jin Joo Hong and two ahead of Korean Birdie Kim, Norway's Suzann Pettersen and Sweden's Annika Sorenstam.
Sorenstam seeks her first title of the year and is trying to claim a spot in next week's season-ending Tour Championship, which features a playoff format and a one million-dollar top prize, matching the total purse at this event, which features 35 tournament winners from 2004 through this season.
World number one Lorena Ochoa of Mexico fired a 68 to share ninth on 211.