In-form New Zealand golfer Lydia Ko is in contention for her second win of the season heading into the final round of the latest event on the LPGA Tour.
Starting the day five shots off the lead, the world No 8 had closed to within two shots after round three of the tournament in Thailand on Saturday.
Ko had seven birdies and two bogeys to card a second consecutive five-under par round of 67, leaving her tied for fourth at 16-under overall.
Thailand's Patty Tavatanakit held the outright lead at 18-under par, one clear of countrywoman Atthaya Thitikul and Germany's Caroline Masson.
Ko, who broke a three-year winless streak in Hawaii last month, got her third round off to a strong start as three birdies in the first five holes put her within one of the lead.
A bogey at the par five seventh meant the resurgent 24-year-old made the turn in two-under 34 as the leaderboard became more crowded.
Ko's back nine included birdies at the 12th, 14th, 15th and 18th holes, with a bogey at the 13th seeing her come home in three-under 33.
The two-time major champion, and 16-time winner on the LPGA Tour, has made an impressive start to the 2021 season.
Coming into the tournament in Thailand, Ko had played seven events and recorded a victory, two runner-up finishes and two other top 10 results.