Lexi Thompson took a one-stroke lead in the Meijer LPGA Classic after shooting a 64 on the reduced to a par of 69 because of flooding.
Thompson had six birdies and a bogey to reach 15-under 196.
The fifth hole was played as a 111-yard par 3 instead of a par 5 because of the flooding from overnight rain.
“It was just a matter of staying patient,” Thompson said. “I knew I was hitting it well on the front nine, I just wasn’t making the birdies. But I hit it well all day, so it was all a matter of hitting the shots closer and I guess just taking advantage of like No. 11, reaching that one in two, and making a few putts for birdie.”
Brooke Henderson, who led after both Thursday and Friday, shot a 67 to drop into a tie for second with Lee-Anne Pace (61), Sung Hyun Park (62) and Jenny Shin (63).
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Hyo Joo Kim (65) was 12 under, and Lydia Ko (64), Michelle Wie (64), Moriya Jutanugarn (67) and Carlota Ciganda (68) followed at 11 under.
Thompson is seeking her ninth LPGA Tour title.