Moriya Jutanugarn, playing with new confidence since her maiden LPGA win last month, had six birdies in a six-under 66 on Thursday to join a four-way tie for the lead at the LPGA Volvik Championship.
Moriya, who had notched 11 top-10 finishes in 2017 before finally breaking through for her first win at the LA Open, missed just one fairway and hit 14 of 18 greens in regulation as she tied her low first-round score of 2018.
She was joined atop the leaderboard by Germany's Caroline Masson and Americans Danielle Kang and Amy Olson.
"I feel is more relaxed now, and of course I like looking forward for my next one," Moriya said of vying for a second career title.
"But I just want to set it as a goal and go back to what I have to do every day, every shot, and I think, it's just more like starting over again."
"I had a lot of fun out there."
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