ARDMORE, Pa. —
With his caddie tending the flag, Mickelson's chip raced by the cup, and Rose was the U.S. Open champion.
Mickelson wound up with a bogey on the 18th for a 74 and tied for second with Jason Day, who closed with a 71.
Day appeared to salvage his round by chipping in for bogey on the 11th hole, and he was still in the picture when he made a 12-foot par putt on the 17th to stay one shot behind. But he put his approach into the bunker left of the 18th green, blasted out to about 7 feet and missed the putt.
The back nine was a four-way battle that included Hunter Mahan, who played in the last group with Mickelson. He was one shot out of the lead until he three-putted the 15th hole for a double bogey, and then closed with back-to-back bogeys when his hopes were gone. Mahan had a 75 and tied for fourth with Billy Horschel (74), Ernie Els (69) and Jason Dufner, who had a 67 despite making triple bogey on the 15th hole.
Rose finished at 1-over 281, eight shots higher than David Graham's winning score in 1981 when the U.S. Open was last held at Merion. The shortest course for a major championship in nearly a decade held up just fine. It was the third time in the last four years that no one broke par in the toughest test of golf.
The last Englishman to win the U.S. Open was Tony Jacklin at Hazeltine in 1970, though Rose added to recent dominance of the Union Jack at the U.S. Open as the third winner in four years. The others were Graeme McDowell (2010) and Rory McIlroy (2011) of Northern Ireland.
Walking off the 18th green, he looked through the patchy clouds and pointed to the sky, a nod to his late father, Ken, who died of leukemia in September 2002.