Updated

Las Vegas, NV (SportsNetwork.com) - Webb Simpson carded a 5-under 66 on Sunday as he rolled to a 6-stroke win at the Shriners Hospitals for Children Open.

Simpson, who earned his fourth career victory on the PGA Tour, finished the tournament at 24-under-par 260.

"This year I felt like I have gotten better. I just haven't gotten a win and I was close at Hilton Head, but we've been working hard and it's just nice to finish the year off with a W and get back to Hawaii," stated Simpson.

Ryo Ishikawa (65) and Jason Bohn (66) shared second place at TPC Summerlin at 18-under, while Charley Hoffman (64) finished alone in fourth at minus-17.

Luke Guthrie (64), Troy Matteson (64), Charles Howell III (65) and Chesson Hadley (70) tied for fifth place at 16-under 268.

Simpson began the day with a 4-stroke lead, and quickly added to that advantage with back-to-back 15-foot birdies at the second and third to move to 21-under.

His lead was never really threatened from there.

Simpson's cushion shrunk to no smaller than five as he parred his next five holes, and another lengthy birdie putt from just inside 15 feet at the ninth capped an outward 32 and gave him a 6-stroke lead over five players.

Among that group was Bohn, who capped a run of five birdies over an eight-hole stretch with consecutive gains at the 11th and 12th to pull within four of the lead at 18-under.

A 3-putt bogey at the 12th cut Simpson's lead to three, but he bounced right back with three birdies over his next four holes to pull away for good.

He parred his final two holes, including a curling 25-foot putt at the last, to close out the big win.

"I was playing, good solid golf. I didn't look at any leaderboards all day, but the course is drying out and I knew it was playing tough," Simpson said about his approach during the final round. "That 3-putt kind of set me back a little bit, but it was nice to birdie 13 ... and then I made a couple more birdies, which is a good feeling."

NOTES: Simpson's total of 260 tied Ryan Moore (2012) for the 72-hole tournament record ... Seven of Simpson's last eight rounds at TPC Summerlin have been at 67 or better ... Ishikawa's share of second place matched his best career finish on the PGA Tour. He also finished second at the 2012 Puerto Rico Open ... Bohn has never shot an over-par round in 20 career rounds at the Shriners Hospitals for Children Open.