The top-ranked Blue Devils fell to fourth place at the California Guadalajara Invitational Tuesday in Mexico.
Duke carded a 5-over-par 293 in the tournament's opening round and sat in third place, but the Blue Devils turned in a 9-over performance in the second day of action and No. 3 Arizona moved into third.
"We've played some good golf, but certainly not the level of golf we are capable of," head coach Dan Brooks said. "We've had many birdies, but we've had some uncharacteristic over-par holes."
Duke is trailing fifth-ranked Southern California by 15 strokes and No. 2 UCLA by a dozen heading into the final 18 holes.
Freshman Amanda Blumenherst and junior Anna Grzebien, ranked No. 1 and No. 2, respectively, are in a fifth-place tie at 1-over par. Grzebien fired a 2-under-par 70 in the tournament's first round, but stumbled some Tuesday and shot a 75.
After turning in a 5-over-par round Monday, sophomore Jennifer Pandolfi rebounded and finished 1-over on the second day to move into a tie for 21st place.
"I've seen considerable good play from our players here in Mexico," Brooks said. "If the numbers don't come down here, they will soon."
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