CHARLOTTE, N.C. -- Rory McIlroy was more methodical than electrifying Sunday.
He was still effective.
McIlory closed with a 3-under 69 to finish at 21-under 267, which shattered the tournament record by five strokes. He entered the day with a four-stroke lead over Simpson after a course-record 61 on Saturday.
"Everything is firing on all cylinders for me," McIlroy said.
McIlroy also won the Match Play Championship two weeks ago in San Francisco and has 11 PGA Tour titles. He has six top-10 finishes in his past eight PGA Tour starts. McIlroy won at Quail Hollow in in 2010 for his first PGA Tour title, shooting 15-under. Anthony Kim set the previous tournament record of 16-under in 2008.
"The golf course just sets up really well for me," McIlroy said.
Phil Mickelson called McIlroy's performance this week "impressive."
McIlroy had another word to describe his play on the back nine. "Boring," he said with a laugh.
Unlike his win in 2010, McIlroy didn't finish in a flurry by carding 3s on the last six holes. On Sunday, he played the last half-dozen holes in 1-under. Then again, he didn't need to shoot lights-out with nobody chasing him.
"It was a more controlled run," McIlroy said. "I feel like I'm a more controlled player these days. I've learned how to finish things off."
Rodgers, playing on a sponsor exemption, was the only player to mount any type of a challenge. He got within three shots after a birdie at No. 15. But there was too much ground to make up, and he played the final two holes in 3-over and finished with a 68. Simpson shot a 72.
McIlroy almost didn't play at Quail Hollow this week but decided he needed to play more because he needed the FedEx Cup points after the Masters. The win moved him into third place in the standings.
McIlroy got off to a shaky start, with a three-putt bogey on No. 2 -- his first in 167 holes -- but quickly pulled it together. He didn't have another bogey until the 17th hole, when he had built a seven-stroke lead, and the outcome was already decided.
Simpson failed to capitalize on McIlroy's early mistake, as he shot 37 on the front nine that included a double-bogey on the par-3 sixth, when he three-putted from 8 feet. That dropped the Charlotte resident six shots back, and he was never in contention again.
"He's our best player right now, and I wish more than anything I could have shot a couple under on the front to make it more exciting," Simpson said. "Just didn't have it today."
McIlroy reached 20-under on No. 12, where he knocked his approach shot from 132 yards to 2 feet of the cup for a tap-in birdie. It looked as if he might coast the rest of the way.
But Rodgers, who earned his first top-25 finish on the PGA Tour, made it interesting when he played a seven-hole stretch in 6-under par, sparked by an eagle on the par-5 10th hole. But McIlroy didn't flinch when Rodgers drained a 15-foot putt on No. 15 to pull within three shots of the lead.
Instead, McIlroy countered by rolling in a birdie putt of his own on No. 14, moving to 21-under and regaining a four-shot cushion. He then put an exclamation point on the win by drilling his approach shot from 145 yards to 3 feet on No. 16 for his tournament-record 27th birdie.
"I had a goal to go out there and birdie the par 5s and the two drivable par 4s, and I knew if I made six birdies, there was pretty much no chance that anybody could catch me," McIlroy said. "With my length and the way I'm driving it, it's a big advantage around here, and it showed this week."
It also helped having a big lead.
"You can pick and choose where you want to be aggressive," McIlroy said.
Rodgers ran out of gas on No. 17, when he dunked his tee shot in the water and took a double-bogey to fall seven shots back. Still, it was a solid finish for Rodgers, who earned an automatic berth in The Colonial next week by virtue of his top-10 finish.
"It has given me a lot of confidence moving forward," Rodgers said.