Dufner can't think of any other athlete who plays with so little emotion.
"But those sports are a little more exciting big plays in basketball, home runs in baseball, big plays in football. That will get you pumped up," he said. "For me, golf is a little bit more boring. I hit it in the fairway or I didn't. Usually I'm struggling with the putter, so there's not too much to get excited about with that."
His name on the Wanamaker Trophy?
That was worth a smile.
"Nobody can take that away from me," Dufner said after he closed with a 2-under 68 for a two-shot win over Furyk. "It's a great accomplishment for me, and I'm really excited about it."
Dufner wasn't sure he would get another chance after the PGA Championship two years ago in Atlanta, where he blew a four-shot lead with four holes to play and lost in a playoff to Keegan Bradley. But he wasn't about to let this one get away. Dufner won by playing a brand of golf that matches the bland expression on his face.
It wasn't exciting. It didn't need to be.
Dufner finished the front nine with six straight one-putt greens, then delivered a steady diet of fairways and greens. He putted for birdie on every hole on the back nine until the last hole. He calmly rolled a 10-foot par putt toward the cup and tapped it in.
"There's not much to celebrate from 6 inches or less, but it was nice to have that short of a putt," he said. "It was a perfect ending for me."
The turning point at Oak Hill was the final two holes on the front nine.
Dufner made a short birdie on the eighth hole to take a one-shot lead, and Furyk made bogey on the ninth hole to fall two shots behind. Furyk, a 54-hole leader for the second time in as many years in a major, couldn't make up any ground with a procession of pars along the back nine. He finally made a 12-foot birdie putt on the 16th, but only after Dufner spun back a wedge to 18 inches for a sure birdie.
Furyk also made bogey on the last two holes, taking two chips to reach the 17th green and coming up short into mangled rough short of the 18th green, where all he could do was hack it onto the green. Furyk closed with a 71 to finish two shots behind.
"I have a lot of respect for him and the way he played today," Furyk said. "I don't know if it makes anything easy, or less easy. But I don't look at it as I lost the golf tournament. I look at it as I got beat by somebody that played better today."
Dufner finished at 10-under 270, four shots better than the lowest score in the five previous majors at Oak Hill. Jack Nicklaus won the 1980 PGA Championship at 274.
Henrik Stenson, trying to become the first Swede to win a men's major title, pulled within two shots on the 13th hole and was poised to make a run until his tee shot settled on a divot hole in the 14th fairway. He chunked that flip wedge into a bunker and made bogey and closed with a 70 to finish alone in third. In his last three tournaments two majors and a World Golf Championship Stenson has two runner-ups and a third.
Jonas Blixt, another Swede, also had a 70 and finished fourth. Masters champion Adam Scott never made a serious of move and shot 70 to tie for fifth. Defending champion Rory McIlroy made triple bogey on the fifth hole to lose hope, those he still closed with a 70 and tied for eighth, his first top 10 in a major this year.
Dufner two-putted for bogey on the 18th from about 10 feet and shook hands with Furyk as if he had just completed a business deal. He hugged his wife, Amanda, and gave her a love tap on the tush with the cameras rolling.
Asked if he had ever been nervous, she replied, "If he has been, he's never told me."