Former Masters Champion Charl Schwartzel, completed his preparations ahead of next weeks final Major of the year, the PGA Championship, when he posted a final round 6-under 64, to finish tied fourth at the WGC-Bridgestone Invitational.
Schwartzel was well placed coming into the weekend, however a third round 73 left the talented South African with too much work to do on the final day.
The 2011 US Masters Champion did put his name into the mix as a potential challenger next week at Valhalla with a blistering 64, which included an eagle on two, five-birdies and only one drop shot, to finish the tournament on 9-under alongside two other Major Champions, Keegan Bradley and Justin Rose.
The day, however, belonged to Rory McIlroy who posted a closing 4-under, 66, to finish two shots clear of overnight leader Sergio Garcia on 15-under-par , the second consecutive occasion that the Northern Irishman has edged the Spaniard after holding him off at Hoylake a few weeks back to win the Open Championship.
McIlroy got his round off to a flying start with three consecutive birdies, wiping out Garcia's lead. The Spaniard failed to get his round going and the early momentum was enough to give McIlroy back-to-back wins, placing him as favourite to lift the PGA Championship next weekend.
McIlroy's first WGC win was his eighth PGA Tour victory and the second time in his career that he has won consecutive tournaments, a feat he last achieved back in 2012 when he doubled up with the Deutsche Bank Championship and BMW Championship.
The win will also see the Northern Irishman head to Valhalla as the new world number one, replacing Adam Scott at the top of the rankings.
"What I am really proud of this week, was following up the Open Championship with a performance like this.
"I wanted to just keep going and keep performing well to the end of the season," McIlroy said.
"It's great to come to one of my favorite tournaments of the year, it really is. I love the course here in Akron, and to perform like this, I'm pretty satisfied.
"Mentally I'm really sharp," he told reporters. "It's the most comfortable I've ever felt trying to close out a golf tournament out there today.
"It felt normal, like a first or second round. It didn't feel like the fourth round. I didn't get ahead of myself. I just kept playing shot after shot after shot.
"I had a couple of wobbles, rode my luck a little bit on the back nine, hit a couple of tree limbs and got lucky a couple of times," he admitted.
Marc Leishman closed with a 3-under 67, ending alone in third at 12-under while Justin Rose joined Charl Schwartzel, 2012 winner Keegan Bradley and Patrick Reed in fourth.
Adam Scott, the 2011 champion, let his chances slip with three drop-shots on the back-nine to finish on 7-under, alongside Rickie Fowler, Graeme McDowell and Ryan Moore.
Charl Schwartzel great approach shot at the WGC
Tiger Woods injury
The big news of the final round was eight-times Firestone Champion, Tiger Woods, who pulled out during his final round, citing another back injury, a big blow for the former world number one ahead of the final Major of the year.