Dallas: Thailand's Pornanong Phatlum shot a one-under-par 70 to trail leaders by just one stroke after Saturday's third round of the LPGA Volunteers of America Classic.
Pornanong, who turned 31 on Friday, picked up three birdies on Nos.6, 16 and 18 while dropped two bogeys on Nos.8 and 10 at The Colony in suburban Dallas.
She was tied for fourth place alongside six other players including South Korea's world No.1 Ko Jin-Young (70) and American Jessica Korda (72) on three-under 210.
South Korea's Ryu So-Yeon fired a six-under-par 65 to grab a share of the lead with compatriot Park In-Bee (69) and US teen Yealimi Noh (71).
World No.15 Ryu's bogey-free round featured five birdies in the first eight holes and another at the par-five 13th to leave her level with Noh and Park on four-under 209.
"I have no complaints about my ball-striking today," said two-time major champion Ryu. "I hit 17 greens, I believe, and then I made so many birdie chances."
Noh, a 19-year-old rookie, birdied all four par-five holes -- the second, sixth, 13th and 17th, but then closed with a double bogey to shoot 71 and fall back into a share of the lead.
"As soon as I finished, I wanted to see the leaderboard and to see that I'm playing with those two in the final round," said Noh about playing with Park and Ryu. "I'm really, really excited."
World No.5 Park fired a 69, making a birdie at the sixth as well as back-to-back birdies at the eighth and ninth before her lone bogey at the par-three 11th.
Park, a seven-time major winner, seeks her second title of 2020 after taking her 20th career LPGA victory at the Women's Australian Open in February just before the season was halted for the Covid-19 pandemic.
Women's British Open runner-up Jasmine Suwannapura (68) was 19th on even par 213 while Moriya Jutanugarn (71) was at tied 20th on 214.