Hataoka, a 22-year-old from Japan, shot a final-round four-under 67 to finish at 16-under.

She three-putted the par-5 18th hole after reaching the green in two, having to make a three-footer for par after rolling her first putt 15 feet past the hole.

Lee, one shot back in the same group, ripped a long drive down the centre, but went with a 5-iron from 196 yards that finished well short of the elevated green.

Her pitch shot up the hill left her about 16 feet for birdie and that failed to drop.

"Overall I was solid all three days," Lee, a winner of six LPGA titles including a major, said.

"I missed a couple of birdie opportunities today that I probably should have made.

Hataoka won her fifth LPGA title at the site of her very first. PHOTO: Jamie Sabau/Getty Images.

"Under the circumstances Nasa did play really well today.

"I'm just disappointed with my second shot on 18, but I still had a great week."

Ji, who eagled the par-5 14th to pull herself into contention, hit her second shot on 18 into a bunker behind the green.

She putted out of the bunker to three feet below the hole and made that birdie to finish tied for second.

Lee, tied for the lead with Hataoka to start the day at 12-under, shot a final-round 68, while Ji closed with a 67 at Pinnacle Country Club.

Hataoka, who won her fifth title on the LPGA Tour, had her first victory in this event in 2018.

She was five-under and 17-under overall through 12 holes before tugging her second shot left and long on the par-4 13th hole.

She chipped back up the hill some 50 feet past the hole. Her par putt was racing when it slammed off the back of the cup, stopping a foot away and saving her at least a 15-footer coming back for bogey.

It was one of only two bogeys she made in 54 holes.

She made par on each hole from 14-18 and saw Lee trim her lead to one with a birdie on the 156-yard par-3 17th hole.

Yuka Saso and Danielle Kang each closed with a six-under 65 to tie for fourth at 14-under. Local favourite Stacy Lewis, who won this event in 2007 and 2014, shot a final-round 66 to move into a tie for sixth with Jin Young Ko.

Hataoka earned $345,000 for the victory.