South Africa's Retief Goosen upstaged three of golf's "big four" after a final round of 67 - the best of the field at Augusta on Sunday.
His round left him in a share of third place at five under with England's Luke Donald, who carded a 69.
Vijay Singh was a shot further back after a 72, while another of the "big four", Ernie Els, also scored a 72 - leaving him 10 over.
Defending champion Phil Mickelson finished three under after a 74.
Mickelson looked to be in good shape for a strong finish when he birdied the par-three fourth.
But the 12th and 16th proved his undoing, as he double bogeyed both of them.
Goosen, who had been steady but unspectacular in the earlier rounds, came alive with the pressure off on Sunday.
He only dropped one shot in his round - at the third - and managed four birdies in his last six holes.
But the US Open champion felt he could have done even better.
He said: "I played well for two-and-a-half, three rounds, played really solid, but the putter was still ice-cold or it could have been a better day."
Singh, having carded three bogeys on the first five holes, finally managed to settle and picked up three birdies for a level par 72.
He lost his world number one ranking to Tiger Woods, but did not seem too upset.
"It doesn't concern me much, it's a long season," said the Fijian, who struggled with his putting all week.
"I just couldn't get the feel of it, couldn't get the pace. I tried everything. I'm not putting badly - I just can't get a feel in my hands."
While the rest of the "big four" were in contention on the final day, Els opened with lacklustre rounds of 75 and 73.
He made the cut at four-over with no room to spare but added a six-over 78 to disappear without trace before closing with a level-par 72.
"Each day something was wrong. The game wasn't there, we'll move on but at least I made the weekend," he said.
"I've got to work on my game and get in better shape for the US Open. I felt the practice rounds were good but then as soon as I started it went wrong.
"The weather has meant I've not had the opportunity of working on anything for a couple of weeks."