Americans Sandra Changkija and Amy Anderson shot identical seven-under 65s to share the lead after the first round of the LPGA Tour`s Portland Classic on Thursday.
Changkija and Anderson, who are both seeking their first wins on the Tour, are atop a crowded leaderboard that also includes 17-year-old Canadian Brooke Henderson who was one of three players at 66 at the Columbia Edgewater Country Club.
Changkija, 26, was one of the early starters and got off to a quick start on her first nine holes (the back nine) by firing a six-under 30.
She needed just 25 putts and closed out her round with a bogey on the ninth hole that would cost her sole possession of the lead.
"I hit some good drives out there. I think I hit about 12 fairways, just the putts started going in," she said.
The 23-year-old Anderson got to seven-under after 12 holes, then managed pars the rest of the way.
"One of the key things was staying patient early," Anderson said. "I`ve never held the lead before, so this is a new, learning experience."
After a successful US college career, Anderson is still trying to find her way on the LPGA Tour. Her best finish is a tie for eighth.
"You have to learn to win at every level," she said. "It started at local tournaments, then to national amateur tournaments, then collegiate, and now I`ve won a couple of professional events, but this is a whole other ballgame."
Henderson, who qualified for this event on Monday, made six birdies and didn`t have a bogey. She was two strokes better than the 68 she shot on Monday to earn a spot in the field.