Lindberg carded a third-round 70 to claim the outright lead atop the leaderboard at Mission Hills Country Club.
"I think it's going to be interesting", Olson said. "I knew Sung Hyun was going to make some birdies".
Sweden's Pernilla Lindberg closed with back-to-back birdies to grab the first-round lead at the ANA Inspiration with a seven-under par 65.
"Oh, goodness, no", she said.
South Korea's Sung Hyun Park shot an 8-under 64 on Friday, and the reigning U.S. Women's Open champion was leading at 15-under through 11 holes when she and Lindberg got put on the clock by a rules official. The US Women's Open victor played a nine-hole stretch in 7 under.
Lindberg rebounded from her first bogey of the week with a 20-foot par save on the par-4 sixth.
"I've played a lot of golf in my life", said Lindberg, "and I just feel like the pieces are kind of falling together".
Lindberg went into Saturday's final group with the mindset of "How often do you get this chance?"
Lindberg shot a 2-under 70 on another hot and mostly calm day at Mission Hills, putting the 31-year-old Swede in position to make the major championship her first professional victory. "I had fun", Lindberg said. I definitely look at it as an awesome learning experience. "Every time I'm there, I'm just so much more comfortable".
Lindberg closed out a 2-under-par 70 Saturday after carving her approach to 5 feet at the last and making birdie.
Both players achieved a 36-hole tournament record of 12-under-par. She also missed a four-foot par try on 13. Like him, she has come to inhabit a body troubled by overuse injuries, exacerbated by forceful golf swings.
Jessica Korda shot 73 and fell from third to a tie for 10th.
"No matter what level it is, there are nerves", said Olson, who competed as Amy Anderson before marrying Grant Olson last June. "But I had a lot of great play, a lot of good aspects in my game".
Rickie Fowler birdied three of the first four holes to move into the lead before he faltered with a double bogey and a triple bogey.
"... my ball-striking was so pure", she said of her victory in the desert.
"I was super focused at the U.S. Open, and felt just as focused for today's round".
She shot a sizzling 68 to get to 205, three strokes behind Lindberg. She won last month in Thailand in her return from reconstructive jaw surgery.
Her performance now, she said, is fuelled by avocado toast. "That's the difference out here".
The leading duo had a substantial five-shot advantage over Englishwomen Jodi Ewart Shadoff (67) and Charley Hull (68) and American Amy Olson (68) with half the field back in the clubhouse. "I saw the line good today and I love these greens". "I'm pretty exhausted after today so I think I'll sleep pretty good". Round 2 Amateur Leaderboard67-71=138 (T8) Albane Valenzuela (Switzerland) 72-70=142 (T34) Rose Zhang (Irvine, CA) 71-71=142 (T34) Atthaya Thitikul (Thailand) 73-70=143 (T41) Lilia Vu (Fountain Valley, CA) 70-76=146 (MC) Lucy Li (Redwood City, CA) 76-73=149 (MC) Sophia Schubert (Oak Ridge, TN) 77-75=152 (MC) Maria Fassi (Mexico) ROUND ONE RECAPA year ago Stanford sophomore Albane Valenzuela was supposed to play in the ANA Inspiration but shortly before the event she was involved in a auto crash forcing her to withdraw. Zhang and Thitikul were tied for 34th at two under, and Vu was tied for 41st at 1 under.
Michelle Wie, despite dealing with ongoing dizziness, bounced back from a dismal opening-round 75 to fire a 5-under 67 on the second day of competition and assure herself of weekend tee times at the ANA Inspiration.
With her booming drives and towering goals, the teenage Wie attracted a huge following - and a sizable endorsement portfolio after she turned professional, just days before her 16th birthday. Defending champion: So Yeon Ryu. Sydnee Michaels aced the 175-yard eighth hole with a six-iron. She played in three more tournaments in July and August before taking September off to allow her body time to heal.