Catriona Matthew of Scotland eagled two holes on the back nine en route to a 6-under 66 on Saturday to share the third-round lead with Brittany Lincicome at the Scandinavian TPC.
Matthew and Lincicome are at 5-under 211 going into yesterday's final round.
Matthew's eagles came on the 12th and 16th, two of the shortest par-5s on the Barseback course in southern Sweden. She also had four birdies and two bogeys, including one on the last hole.
"I played really well today. I hit a lot of greens and obviously two eagles on the back nine helped my score a bit so I'm pleased with how I played," said Matthew, who is playing only her third Ladies' European Tour event of the year after becoming a mother in December.
"I played well the first two days, just had a couple runs of bad holes but I was pleased with the way I was hitting the ball. I knew if I could do it for 18 holes I'd be OK -- I managed to do it for 17 today," she said.
On the 12th, Matthew came close to her first-career double-eagle, hitting a 7-iron approach shot that landed a foot from the hole.
Lincicome shot 71. The American had three birdies and two bogeys.
Annika Sorenstam, the tournament host and three-time defending champion, shot 74 and dropped to joint 21st at 4 over.
The winner of 10 majors and 84 tournaments worldwide, Sorenstam has not made a single birdie in the last two rounds on the course where she helped Europe win the 2003 Solheim Cup against the US.
"This is my toughest time as a golfer ... I have felt better," said Sorenstam, who hit only three fairways on Saturday and missed the few birdie chances she had.
The 36-year-old Swede is heading toward the most disappointing season of her career. She had a second place-finish in March, then she didn't make the top 10 again until July. She sustained a back injury in April and was sidelined for two months.