(CNN) -- Australia's Geoff Ogilvy halted the dream run of Northern Ireland teenager Rory McIlroy 2&1 in the quarterfinals of the WGC-Accenture Match Play Championships in Arizona on Saturday.
McIlroy (left) shakes hands with Ogilvy after the Australian wraps up a 2&1 win.
The 19-year-old McIlroy thrashed Tiger Woods' conqueror Tim Clark in his first professional tournament in the United States, but found 2006 champion Ogilvy a tougher test.
Ogilvy later beat American Stewart Cink 4&2 to earn a place in Sunday's final.
He will play Paul Casey, who won an all-English semifinal against Ross Fisher 2&1.
Dubai Desert Classic winner McIlroy took the lead with a birdie on the second hole at the Ritz-Carlton Golf Club but his more experienced opponent drew level as he bogeyed the fourth.
On the par-four fith McIlroy produced the longest drive of the week at 388 yards but he two-putted for par as Ogilvy rolled home a birdie to take a lead he never gave up.
But it was nip and tuck on the back nine and after falling two down on the 12th McIlroy pulled a hole back at the next with a birdie.
The youngster rolled home a clutch birdie putt on the 16th to halve the hole and stay in the match, but former U.S. Open champion Ogilvy would not be denied and earned a semifinal place with another birdie on the 17th.
"Geoff played incredibly well and I needed to get birdies but it just wasn't enough in the end," McIlroy told Press Association.
"But I can take a lot out of this week. I played well and I've held my own against some of the best players in the world so it's been good."
Ogilvy, who was also runner up in the WGC event in 2007, proved too good for Cink in his semifinal.
Cink had ended the run of Ernie Els with a 2$1 win in their quarterfinal.
Casey reached the semifinal with a fine win over Sean O'Hair 4&3, while Fisher upset former British Open champion Justin Leonard 2&1.