Annika Sorenstam overcame two double bogeys to stay in the hunt, and Minea Blomqvist of Finland surged into contention with the lowest score in a major.
Sorenstam offset double-bogey 7s at Nos. 1 and 14 with six birdies in a 2-under-par 70, moving to 7-under 209 through three rounds yesterday at the Women's British Open on the Old Course in Sunningdale, England.
She's five strokes behind co-leaders Heather Bowie and Rachel Teske, who shot 65s and moved to 12-under 204.
The biggest move of the day came from 19-year-old Blomqvist, who made a 60-foot birdie putt on the final hole for a 10-under 62, the lowest score ever for a man or woman in a major. She also broke Karrie Webb's course record of 63 set in 1997.
Blomqvist, who won a tournament two weeks ago in Hungary, started her record round with a 7-wood into 21 feet for eagle on the 485-yard opening hole.
Her only birdie inside 18 feet came at the 273-yard ninth, when she drove the green and two-putted for birdie. She also chipped in for eagle from 60 feet on No. 10, and closed it out with the 60-footer on the 18th.
"I made an eagle, and then . . . I had a feeling today that everything is going good," she said. "And that's always an easy feeling. Yesterday, I couldn't concentrate on any putt. Today, it was totally different, so I really enjoyed it."
Five women and 21 men have shot 63s in the majors.
* U.S. SENIOR OPEN: Peter Jacobsen and his surgically repaired hip have passed two tests in St. Louis. The biggest challenge is still to come.
Jacobsen followed up his 6-under 65 in the first round with a 70 for a share of the lead with Craig Stadler. Jose Canizares, who birdied the last three holes for his second straight 68, was one behind at 6 under.
Jay Haas, Tom Kite, Fuzzy Zoeller, Bob Gilder and D.A. Weibring were 5 under, and the Champions Tour's top two money-winners, Gil Morgan and Hale Irwin, were 4 under.
Not only are some of the 50-and-over tour's biggest names within striking distance, but Jacobsen, 50, is facing uncharted territory in his recovery from arthroscopic hip surgery three months ago. Because rain washed out play Friday, the tournament will finish today with a 36-hole walk around the 7,117-yard Bellerive Country Club course.
And Jacobsen is doing it on a hip still so painful that walking even 18 holes was impossible until this week. After six weeks on crutches, he entered two tournaments and withdrew because he couldn't finish the round.
Finally, thanks to a new stretching regimen, Jacobsen made it through 18 holes Thursday and again yesterday. What if he's still ahead today, but the pain becomes unbearable?
"I'm not even going to think about that," Jacobsen said. "But, yeah, that's a concern."
* BUICK OPEN: Tiger Woods shot a 6-under 66 and still lost ground to Vijay Singh in Grand Blanc, Mich.
Singh shot a third-round best 65 for an 18-under 198 and a two-stroke lead over John Daly, who shot a 66. Singh has won the last six tournaments he's led after 54 holes.
Woods started the day trailing by two shots, and despite six birdies and no bogeys, he fell another shot back and is tied for third with Carlos Franco at 15 under. Daniel Chopra (66) is one more stroke back.