Brooks Koepka has admitted he finds it hard to comprehend his place in golfing history after his dramatic victory in the 100th US PGA Championship.

Koepka carded a closing 66 in a breathless final round at Bellerive Country Club to finish two shots ahead of Tiger Woods, joining the runner-up, Gene Sarazen, Ben Hogan and Jack Nicklaus as the only players to win the US Open and US PGA in the same season.

After becoming the first player in 29 years to win back-to-back US Open titles at Shinnecock Hills in June, Koepka has now won three of his last six major starts, a wrist injury having forced him to sit out the Masters in April.

"When I look at what I've done in the past two months, it's incredible," said Koepka, whose 16-under-par total of 264 set a new tournament record, beating the 265 set by David Toms in 2001.

"Looking where I was, sitting on my couch watching the Masters, and to think I would do this, I would have laughed at you and told you there was no way, no chance, and to do it is really incredible.

"My doctors, physios, trainers, everybody did an unbelievable job even to get me back out on the golf course, and to do what I've done is very impressive. I can't even believe it.

"Three majors at 28, it's a cool feeling. It really is. Hopefully I can stay healthy. I've kind of had some trouble with that over the past two or three years.

"I missed the British [Open in 2016] and then Augusta this year. I think I'm much more disciplined now so I should be able to play every major, making sure my body's healthy.

"I'm excited for the next few years. I'm a fan of golf. I mean, Tiger's come back. You look at what Dustin [Johnson] is doing, Justin [Thomas], Rory [McIlroy], [Jordan] Spieth. It's a great time to be a golf fan. I can't wait to duel it out with them over the next couple of years or next however long."

Shane Lowry got to ten under par early on the back nine, but again was just too far back from Koepka who kept his aggressive style throughout.

Lowry finally finished on eight under par in a tie for 12th following two late bogeys, while Rory McIlroy was out early and shot a level par 70 to finish on two under and in a tie for 50th place.

Woods admitted he never imagined being in contention in consecutive majors after threatening to pull off one of the greatest sporting comebacks of all time.

"I was in contention in the last two majors and would never have foreseen that a year ago and I'm just so thankful to be here," Woods said.

"I didn't know what my schedule would be. I didn't know how many tournaments I would play this year, or if I would even play. So each tournament brought about its own challenges.

"At the beginning of the year if you would say I would have a legit chance to win the last two major championships, I'd say with what swing? I didn't have a swing at the time. I had no speed. My putting was OK but God, I hadn't played in two years. So it's been a hell of a process for sure."