MEMPHIS, Tenn. - Robert Karlsson shot a 5-under 65 on Friday to take a 3-stroke lead after the second round of the St. Jude Classic at TPC Southwind.

Karlsson started a stroke behind first-round leader David Mathis and carded six birdies and a bogey to reach 9 under. Colt Knost (68) and Keegan Bradley (67) were tied for second. Bradley, the Byron Nelson Championship winner two weeks ago, is among a few who can earn a spot in the U.S. Open by winning his second tour event since the last Open.

John Merrick (69) was 5 under, and Fredrik Jacobson (65) and Harrison Frazar (65) were another stroke back.

Karlsson came into Memphis ranked 23d in the world and looking for his first PGA Tour win in his first full season on tour. He has 11 career European Tour wins, but his best finish this year was a tie for fifth at Colonial.

LPGA

SPRINGFIELD, Ill. - Mindy Kim maintained her 2-stroke lead in the LPGA State Farm Classic, following her opening career-low 64 with a 5-under 67 to reach 13 under.

Kim had seven birdies - four in a row on Nos. 12-15 - and two bogeys on the Panther Creek course. Top-ranked Yani Tseng (66) and Shanshan Feng (65) were tied for second.

Kim, winless in two seasons on the LPGA Tour, said she has struggled with focus after bad holes, but thinks she's maturing and managing herself better on the course. The American proved it by quickly rebounding from a bogey on the par-4 10th - her opening hole of the round.

Champions Tour

CONOVER, N.C. - Bob Tway birdied the 18th hole for a 9-under 63 and a 1-stroke lead after the first round of the Champions Tour's Greater Hickory Classic. Mike Goodes, who had six straight birdies, was a shot back along with Tommy Armour III, Joe Ozaki, and Mark Wiebe. Mark Calcavecchia, Mark O'Meara, and David Eger opened with 65s.