Sei Young Kim of South Korea eagled the 15th hole for a five-under-par 68 Friday to take a one-shot lead after the second round of the KPMG Women's PGA Championship, the second major of the season.
Kim overtook Hall of Famer Karrie Webb, who birdied the 18th for a 71. Two-time defending champion Inbee Park (68) joined Webb a stroke back.
The 22-year-old Kim, a two-time winner this season on the LPGA Tour, shot bogey-free golf to finish at eight-under 138 at the Westchester Country Club in Harrison, N.Y.
Suzann Pettersen rallied with seven birdies for the best round of the day at 66 and tied Canadian teenager Brooke Henderson (73) at six under.
First-round leader Jenny Shin (75) and third-ranked Stacy Lewis (71) were three shots behind Kim.
The tournament, run by the PGA of America for the first time, is the second of the LPGA Tour's five major championships.
Brooks Koepka, who added the St. Jude Classic to his schedule to tune up for the U.S. Open, shot a three-under 67 to take a one-shot lead after 36 holes at Memphis, Tenn. He turned in a four-birdie, one bogey round for a nine-under 131 total.
Fellow American Austin Cook (64) was at 132. Steve Alker of New Zealand briefly had the lead at 10 under with two holes to play only to finish bogey-double bogey for a 68 and trail by two.
Bernhard Langer shot his second consecutive six-under 65 to extend his lead to four shots halfway through the Senior Players Championship at Belmont, Mass.
Langer sank a 40-foot birdie putt on No. 16 in a round in which he hit 17 greens in regulation at Belmont Country Club. He's seeking to become the first repeat winner of the major event since Arnold Palmer in 1984-85.
Russ Cochran also shot 65 and sat alone in second place. Steve Pate set a course record with a bogey-free 63 that left him in a three-way tie for third and six shots back, with Lee Janzen and Jesper Parnevik.
In the Lyoness Open in Atzenbrugg, Austria, Gregory Bourdy of France took a four-shot lead after two rounds on a day Andre Pavlov of Russia had a 17 on the par-five first hole. The 1,598th-ranked Pavlov found the water six times on his way to a 90.