Keegan Bradley became the first player to win the US PGA on his debut since Ben Curtis in 2003 as he saw off compatriot Jason Dufner.
Bradley also became the first American to win a major in the 2011 season as he came through a three hole shoot out with Dufner.
The twenty five year old almost gave it away on the fifteenth when he triple bogeyed to hand Dufner the lead.
But Dufner couldn't make the most of the chance that he has been given as he also went into the after at 15 before bogeying 16 and 17.
The pair were tied at -8 with round of seventy two at the end at the final round of eighteen holed.
Bradley set himself up well at the first of the play-off holes, the sixteenth, as he birded and it was a lead that he never gave up as the pair came down the eighteenth green for a second time.
Speaking to CNN he said: The putt on 17 is one I'll never forget for the rest of my life. It was a perfect putt. I was relieved [also] to make that putt on 16; I knew it was a very important putt.
"I'm just proud of the way I came back," said Bradley. "I could've folded, I'm just proud that I didn't.
"It has sunk in a little bit. I've been in the media room a few times, there are normally four or five people in there but today this place was full. So it's definitely hitting home."
Anders Hanson was the best of the Europeans as he finished in third on -7 while Robert Karlsson was two shots behind.
There was disappointment again for Lee Westwood and Luke Donald as they both finished on -3.
FemaleFirst Helen Earnshaw
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