TULSA, Okla., Sept. 6 (UPI) -- Tracy Hanson emerged as the surprise leader at the Williams Championship Friday by firing a bogey-free, 6-under-par 64 at the Tulsa Country Club.
Battling a field that includes Annika Sorenstam, Hanson produced her best round of a disappointing season and had a one-shot lead over Cristie Kerr.
"I hit the ball well, I hit my driver well, so I think I only missed maybe two fairways," said Hanson, who has missed six of 20 cuts this year, including each of her last two starts.
"It's much easier to hit it closer to the pin from the fairways than the rough, and that is the first key. The second key is I did hit some good iron shots. I was able to attack the pins and I felt good with my putter."
Hanson has finished no better than 12th this season and is winless in eight years on the LPGA Tour.
France's Patricia Meunier-Lebouc, coming off her first career win at last week's State Farm Classic, headed an international group at 66. Sweden's Liselotte Neumann, Korea's Grace Park and Scotland's Catriona Matthew also were at that number.
Playing for the first time since missing the cut at the British Open, Sorenstam shot a 68 and was tied for seventh with Maggie Will and Kris Tschetter.
Sorenstam is one of 13 players in this week's field who also will compete later this month in the Solheim Cup team competition in Minnesota. The American squad has nine of its 12 Solheim Cup members in the field. The only ones missing are Laura Diaz, Michele Redman and Kelly Robbins.
Defending champion Gloria Park of Korea struggled to a 2-over 72 and is eight shots back. Last year, she claimed her first career victory by erasing a five-stroke deficit in the final round.