Seth Wenig/Associated Press

Sung Hyun Park sits alone in fourth place at six under, and Mirim Lee is tied with So Yeon Ryu for fifth place at five under. Park and Lee both shot day-best 67s.

Despite some hard-charging golfers going low Saturday, Shanshan Feng remains in control of the 2017 Women's U.S. Open.

Feng carded a one-under 71 in the third round to carry a one-stroke lead over Amy Chang and amateur Hye Jin Choi heading into the final 18 holes. While the top of the leaderboard is stagnant from a day ago, there are two new faces rounding out the top five.

Sung Hyun Park sits alone in fourth place at six under, and Mirim Lee is tied with So Yeon Ryu for fifth place at five under. Park and Lee both shot day-best 67s.

Feng went into the 18th hole at even par for the day, having gone 17 consecutive holes without recording a bogey or a birdie. She carded her lone birdie of the day on the par-five 18th to break a tie with Chang and Choi.

"I guess finally on the 18th I hit it close enough [to make a birdie] and give the fans some excitement," Feng said, per Ron Sirak of the LPGA's website. "Coming to this week, I didn't have any expectation at all. I just wanted to bring out my A game. And then I think I did really well for the first three days, and then I'm going to stick to my game plan tomorrow. I just focus on my own game and let's see what happens."

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Choi, a 17-year-old amateur, began her day two strokes behind and quickly dug herself a hole with a bogey on No. 1. But after recording six straight pars, she settled herself to go three under the rest of the day to put herself in contention for her first major win.

"I didn't have the greatest of starts," Choi said. "But I think if I just stay focused and play the game as maybe not necessarily play safe but maybe more aggressively, kind of like how I did, I think I'm going to be OK tomorrow."

Following a promising birdie on No. 1, Yang nearly saw her round fall apart with a three-over stretch on Nos. 2 and 3. But like Choi, she also recovered. Yang birdied the sixth to make the turn at one over before settling herself with back-to-back birdies on Nos. 10 and 11. She added another birdie on No. 17 to finish out the rocky round at two under.

Park hit all six of her birdies on the back nine after playing the front at 37. Lee did not record a single over-par score and had five birdies to get to 67.

Cristie Kerr, who shot a two-under 70, sits in a tie for eighth place at four under and is the top American in the field.