Colin Montgomerie could not hide his despair as he threw away the chance of winning his first major at the US Open.
Monty under-clubbed his approach to the last and paid a heavy price
The 42-year-old was tied for the lead as he headed down the 18th but missed the green from the middle of the fairway and made a double-bogey.
"My other chances (to win majors) other people have done well, this is the first time I've messed up," he said.
The Scot has gone close at the US Open four times - he was denied by Tom Kite in 1992 and Ernie Els in 1994 and 1997.
The 172-yard shot to the last was not aided by a decision to change clubs at the last moment.
"I hit the wrong club on my second shot," a disappointed but philosophical Montgomerie said later.
"I switched from a six (iron) to a seven, because I thought adrenaline would kick in. I just hit it a little heavy and put myself in a poor position."
Montgomerie's approach landed short and right of the pin, in the heavy greenside rough.
I look forward to coming back next year and try another US Open...disaster
The eight-time European number one then pitched out and ran well past the hole, taking three putts to finish with a round of 71 and a six-over total.
"This is as difficult as it gets. To double-bogey the last and finish runner-up," he said.
"It is a very tricky hole but not from the fairway."
The mistake is all the more galling as Montgomerie, who has now played in 58 majors without winning one, was in a prime position after he rolled in a huge birdie putt at the par-four 17th.
"The last hole I played was 17, actually, so that was good," said Montgomerie, who also finished runner-up at last year's Open at St Andrews.
"Seventeen was a drive out right and a five-iron through the trees and a 40ft putt. That was the last hole of golf I played."