Jutanugarn, from Thailand, secured her fifth Top 10 this year but couldn't get the eighth victory of her career.
Canada's Brooke Henderson delivered her second straight bogey-free round on Thursday to take a two-shot lead at the halfway point of the LPGA Tour's Lotte Championship. Wie double-bogeyed her 15th hole to finish at even par.
Henderson, 20, was 12-under through the tournament and won by four strokes over Spain's Azahara Munoz. Her lone stumble of the day came with a bogey at No. 12, but birdies at No. 14 and No. 16 allowed her to cruise home.
Top-ranked Shanshan Feng (71), third-ranked Inbee Park (72) and sixth-ranked Ariya Jutanugarn (69) tied for third at 7-under. The Smiths Falls, Ont., native was too talented, and she had some very important people to play for, dedicating her victory to the people involved in the Humboldt Broncos junior hockey team bus crash in Saskatchewan.
In its seventh year, the Lotte Championship at Ko Olina Golf Club has a seventh different victor. But she parred in for her best finish in more than four years.
The Canadian followed her opening 68 with a superb six-under-par 66 today to reach 10 under, two clear of American Mo Martin and Chinese world No.1 Shanshan Feng with another two shots back to the rest of the field, including Sweden's recent ANA Inspiration victor Pernilla Lindberg. "Kind of from four putts to one putt, that was a great feeling just to increase my lead a little bit more".
Pernilla Lindberg shot 70 in her first start since beating Park in an eight-hole playoff in the year's first major. Lindy Duncan also was 6 under after a 68. Defending champion Cristie Kerr also shot 73 and was another shot back. She is the first golfer from China female or male to reach No. 1 in the world rankings.