SOUTHAMPTON, N.Y. - South Korea's Ha-Neul Kim upstaged friend Inbee Park on Thursday to take the first-round lead at her first U.S. Women's Open.
Kim shot a bogey-free 6-under 66 at Sebonack to lead Park by a stroke. Top-ranked Park is trying to make history by winning the first three majors of the year.
"I'm enjoying myself," Kim said through a translator. "I'm just happy to be here and to be playing in this big event. I'm not really thinking about winning or results but enjoying the moment."
Currently a member of the KLPGA Tour, Kim is a seven-time winner in South Korea. She kept giving herself short birdie putts Thursday and making them.
Kim birdied her second-to-last hole with daylight waning to claim the lead after Park held it for most of the day with her 67 in the morning session.
No player has won the first three majors in a season with at least four majors. The 2008 U.S. Women's Open champion, Park has already won five times this year, including her last two tournaments.
American Lizette Salas, Swedes Caroline Hedwall and Anna Nordqvist and South Korea's I.K. Kim shot 68.
Starting on No. 10, Park birdied her first hole, then started racking up pars. She made the turn at 2 under before birdies on three of her next four holes.
BETHESDA, Md. - Roberto Castro shot a 5-under 66 Thursday for a two-shot lead after the first round of the AT&T National at Congressional.
Castro made three straight birdies late in his round with a 20-foot putt, a perfect 3-wood into a par 5 and a chip-in.
Billy Horschel, who tied for fourth in the real U.S. Open two weeks ago, tied for second at 68 with Bud Cauley and Graham DeLaet.
PITTSBURGH - John Huston shot a 5-under 65 on Thursday to take the first-round lead in the Senior Players Championship.
Huston started on No. 10 and was even par halfway through his round before making a big move on the front nine at soggy Fox Chapel.
Fred Couples, Duffy Waldorf, Fred Funk and Russ Cochran were a stroke back in the third major on the Champions Tour schedule.
MAYNOOTH, Ireland - Saying he's "feeling a bit lost" in a difficult year, Rory McIlroy shot a 2-over 74 on Thursday in the Irish Open to fall eight strokes behind first-round leader Oscar Floren.
Second-ranked McIlroy, from Northern Ireland, had four bogeys and two birdies in wet and overcast conditions at Carton House on the outskirts of Dublin. Floren, from Sweden, had a 6-under 66 for a one-stroke lead.