Harrington has started to believe it, too.
I have traditionally played golf on fear of failure, Harrington said. I believe I need to move to a level where I can use confidence as a way to play better.
Harrington looked confident, calm and relaxed Sunday as he spoke at White Oak Golf & Equestrian Community, where the triple major champion is set to build his first U.S. home.
He spent the past week since winning the PGA Championship decompressing, away from his home country of Ireland and the spotlight that follows his wins. This was good for me, Harrington said, grinning.
Harrington, 36, says hes fueled by the tension that comes from fighting for a title on the back nine, as anyone who watched him take control of the British Open and PGA the past month can attest.
Harrington would like to tee off with the same steadfast belief in victory on the first hole as he has on the 72nd.
I struggle to play my best golf when theres no pressure, he said. The next level for me is about accepting Im a three-time major winner, taking the confidence from that and that will help me earlier in tournaments so I dont have to put myself through the mill.
Harringtons approach worked well enough at the years final two majors.
He overcame Greg Normans three-stroke lead over the final nine holes at Royal Birkdale last month to repeat as British champ. Then Harrington rallied back from one stroke down to defeat Sergio Garcia at Oakland Hills to win the PGA.
Ive got a deep-down confidence that I can battle through anything, Harrington said. I need to have more flamboyant confidence at the start.
Harrington accepts that some will wonder if he ' or anyone else ' wouldve won if Woods, who is out for the season after knee surgery in June, were healthy. Its a valid point, Harrington said. Im not going to worry about it, though.
Harrington wants to work on improving his play, no matter who he faces.
Harrington returns to action Thursday at The Barclays to start the PGA Tours FedEx Cup playoffs. Harrington stood fourth in points after last week with only Woods, Kenny Perry and Phil Mickelson ahead.
A bigger stage for Harringtons swagger is the Ryder Cup matches next month at Valhalla Golf Club in Louisville, Ky.
Harrington was part of the last three winning European squads. This time, he comes in as Europes unquestioned star.
Obviously, Ive been the No. 1 European player for six years. It is interesting that it has taken these major wins to get that across, Harrington said.
As far as a leadership role, that can only come from the other players, he said. Theres no doubt, Ill always make myself available to help anybody else, but in that sense, winning a couple of majors may make people seek advice from me during that week.
White Oak was developed by several Irish businessmen ' some of the courses caps include the Irish flag ' who made Harrington and his family feel at home. Harrington doesnt expect his worldwide schedule to change that much. Hes just happy to have an American base for wife Caroline and their two children when hes on the PGA Tour.
Harringtons next challenge? Ensuring he doesnt stop challenging himself.
Its such a high in my career, it very easily could be the last high. And many players have failed at this point in the past, he says. Thats the key. I have to set new goals.
Count more majors among them. He spent the past few seasons honing his practice schedule to prepare for his sports biggest events, much to the worry of many in his native land, who routinely question why one of their most important sports stars doesnt win more often.
Harrington remembers earlier this year: A delivery man asked what had gone wrong with his play even though he had had four top-5 finishes in nine PGA TOUR events prior to the British.
You can get drawn into it. Winning can bring more pressure if you allow it, Harrington said. You just have to get yourself into doing your own thing.