GLADSTONE, N.J. — Jiyai Shin has a couple of telling nicknames in "Final-Round Queen" and "Chalkline." At Michelle Wie's expense, the top-ranked South Korean star lived up to both yesterday on another hot, humid afternoon at Hamilton Farm.

Splitting fairway after fairway — right down the "chalkline" — and patiently capitalizing on her birdie chances, Shin knocked out Wie in the Sybase Match Play Championship quarterfinals, rallying to win 2 and 1.

"This match was so big," Shin said. "When I saw the pairing, I was a little bit worried because she's a long hitter and I'm not."

Relaxed and smiling often in her first four matches this week, the 22-year-old Shin is chasing her first LPGA Tour title of the year after winning six times in the last two seasons. She also has 23 international victories.

In contrast, Wie has one LPGA Tour victory.

"She's a superstar," Shin said. "I just tried to focus on my game."

Showing only a little emotion and fighting shaky ballstriking and putting, Wie couldn't find a way to beat Shin despite a huge distance advantage off the tee.

"I just didn't play that well coming in," Wie said. "I didn't play as well as I wanted. I think I know exactly what I need to work on. I'm going to work hard the next two weeks and try to win."

Shin will play Sun Young Yoo — a 2-and-1 winner over fourth-seeded Yani Tseng — in the semifinals this morning. In the other quarterfinals, 10th-seeded Angela Stanford beat Catriona Matthew, 5 and 3, and No. 30 Amy Yang edged Haeji Kang, 1-up.

Shin, at 5-foot-1 nearly a foot shorter than Wie, took the lead for the first time when Wie bogeyed the par-4 15th after hooking her drive into the tall rough. Shin then won the par-3 16th, holing a 15-foot birdie putt. Wie hit her tee shot into the deep right bunker, blasted out to 18 feet and missed her par try.

"I just didn't hit good shots," Wie said. "Sometimes that happens."

The match ended when Wie pulled her 10-foot birdie putt well left on 17.

Wie briefly hugged the beaming Shin, then bolted to join her parents — father B.J. and mother Bo — in a waiting golf cart. Bo wrapped her arm around her daughter's shoulder as they sped off for the clubhouse.

In the morning third-round matches, Shin beat Beatriz Recari, 4 and 3, and Wie struggled at times in a 3-and-2 victory over Karine Icher.

In the afternoon, Wie birdied the par-5 second to take a 1-up lead, and Shin squared the match with a tricky 5-foot par putt on the par-4 seventh.

Wie won the par-3 12th with a 25-foot birdie putt from the edge of the green, skipping and punching the air in celebration.

"It was just 12, so I'm not worried because I've got six holes left," Shin said.

Shin pulled even on the par-4 13th with a 12-foot birdie putt after Wie hit a flop shot to a foot following an approach that went off the back of the green.

"I was thinking, this is my birdie chance," Shin said.

Stanford won six of the last eight holes to beat Matthew in 15 holes, then rushed off to catch the Yankees-Mets game.

"I asked my caddie on 11 what time it was," Stanford said.

She beat former Duke star Amanda Blumenherst in 20 holes in the third round.