Leishman, who earned his first title on the PGA Tour, finished the tournament at 14-under-par 266. The Australian had twice finished as the runner-up, and tied for third at the Byron Nelson Championship that May.
With the LPGA and Ladies European Tours off last weekend, there was little movement in the latest women's world rankings.
Justin Rose claimed his first major championship title on Sunday and that helped him move up two spots in this week's world golf rankings.
Justin Rose had back-to-back birdies twice in the final round of the U.S. Open on Sunday, and those two bursts helped him claim his first major championship title.
One of these times will be the charm for Phil Mickelson. It wasn't the first or second or third or sixth for that matter.
Sue Kim birdied the first playoff hole on Sunday to defeat Laura Kueny and win the Decatur-Forsyth Classic.
Three-time champion Tiger Woods wrapped up the 113th U.S. Open Championship on Sunday with a 4-over 74.
Webb Simpson, the 2012 U.S. Open champion, wrapped up his title defense with a 2-over 72 on Sunday.
Shawn Stefani played in his second major championship this week, and on Sunday he did something no one else has done in a U.S. Open at Merion.
Philip Golding fired a 5-under 66 on Sunday to rally for a 2-stroke victory at the Wales Senior Open.
