Top-ranked Yani Tseng shot a 6-under 66 on Thursday to take a one-stroke lead over Paula Creamer in the first round of the LPGA Championship.
Meena Lee and Angela Stanford were 4 under, and Morgan Pressel, Stacy Lewis, Ryann O'Toole, Amy Hung and Hee Young Park were at 3 under.
Defending champion Cristie Kerr, who was ailing with a light case of the flu, shot an even-par 72.
Play was halted in the early evening by a severe thunderstorm with 58 players still on the course.
Tseng made five birdies on the front nine and three on the back to go with a pair of bogeys. She recovered from a bad tee shot at the par-4 18th hole that landed in the thick right rough, hit her second shot to 4 feet, and drained the birdie putt for sole possession of the lead.
PGA: Michael Bradley had a one-stroke lead when first-round play in the Travelers Championship was suspended for the day.
Bradley was 6 under with two holes left when play was stopped at 11:30 a.m. at TPC River Highlands in Cromwell, Conn.
Officials reopened the driving range late in the afternoon and hoped to resume play at 5:45 p.m., but another shower forced more delays and officials decided not to restart play until today at 7 a.m.
Vijay Singh was in a group of seven players a shot back. Singh hit his drive into the woods on the par-4 15th hole just before the rain delay. He found the ball and was expected to take a drop when play resumes.
Former Masters champion Zach Johnson was in a group at 4 under.
Only two groups finished the round.
PGA EUROPEAN: Henrik Stenson shot an 8-under 64 in poor weather to take a one-shot lead after the opening round of the BMW International Open in Munich, Germany.
Stenson was among the late starters who had to endure a rainfall that made for higher scoring in the afternoon.